Page 1 Operation & Maintenance WEAM014500 Manual PC22MR HYDRAULIC EXCAVATOR SERIAL NUMBER PC22MR-3 F30001 and up WARNING ORIGINAL INSTRUCTIONS Unsafe use of this machine may cause serious injury or death. Operators and maintenance personnel must read this manual before operating or maintaining this machine.
Page 3 FOREWORD WEAM014500...
Page 4 FOREWORD FOREWORD q This manual has been compiled by Komatsu Utility S.p.A. in order to supply customers with all the necessary information on the machine and on safety regulations, as well as the use and maintenance instructions that enable the operator to exploit the capacity of the machine with optimal results and to keep the machine efficient over time.
Page 5 FOREWORD FOREWORD Storage location for the Operation and Maintenance Manual: WEAM014500...
Page 6: Foreword
Komatsu machines are manufactured and sold according to the rules or standards of the countries where they have to work. If the machines have to work in other countries, it is necessary to check that every safety devices and technical specifications are in compliance with the regulations in force;...
Page 7 DANGER It is strictly forbidden to modify the setting of the hydraulic system safety valves; Komatsu cannot be held liable for any damage to persons, property or the machine, if this has been tampered with by modifying the standard settings of the hydraulic system.
Page 8 Some illustrations may be different from the details of the machine in your possession: this is due to the continuous improvements made to the machines. Consult Komatsu or your Komatsu distributor for the latest available information of your machine or for questions regarding information in this manual.
Page 9: Noise Levels
Do not use fuel, petrol or solvents. q If the plates are damaged, ask for new ones to Komatsu or to your Komatsu distributor. q In case of replacement of a component provided with a noise plate, make sure that such a plate is applied also to the new part.
Page 10: Canopy
Do not use fuel, petrol or solvents. q If the plates are damaged, ask for new ones to Komatsu or to your Komatsu distributor. q In case of replacement of a component provided with a noise plate, make sure that such a plate is applied also to the new part.
Page 11: Vibrations To Which The Operator Is Subjected
FOREWORD SAFETY INFORMATION VIBRATIONS TO WHICH THE OPERATOR IS SUBJECTED When the earth moving machine is used for its intended purpose, the vibration levels transmitted from the operator's seat are less than or equal to the vibration tested on the related class of machinery in accordance with ISO7096.
Page 12 FOREWORD SAFETY INFORMATION 7. Minimize vibrations for long work cycle or long distance travelling. Q Reduce speed to prevent bounce. Q Transport machines long distances between worksites. 8. The following guidelines can be effective to minimize risks of low back pain. Q Operate the machine only when you are in good health.
Page 13: Introduction
NOTICE q The instructions regarding the authorized optional equipment are given in the relevant operation and maintenance manuals; if the equipment is supplied by Komatsu, these publications are enclosed to this manual. q The instructions regarding the assembly of the authorized equipment, the controls requiring special arrangements on the machine and the hydraulic couplings necessary for the operation of such equipment are grouped in the final section of this manual.
Page 14: Running-In
FOREWORD INTRODUCTION q Boom swing and optional equipment operated through foot pedal controls. q Translation and blade control levers. q Travel speed selection push button. q Complete series of instruments visible from the operating position. q Lever accelerator. q Easy maintenance with simplified intervals. RUNNING-IN All machines have been meticulously adjusted and tested before delivery.
Page 15: Directions Of Machine
FOREWORD INTRODUCTION DIRECTIONS OF MACHINE Front Operator's seat Rear Sprocket Left Right In this manual, the terms front, rear, left, and right refer to the travel direction as seen from the operator's seat when the operator's seat is facing the front and the sprocket (F) is at the rear of the machine. WEAM014500 1-13...
Page 16: Product Identification
PRODUCT IDENTIFICATION PRODUCT IDENTIFICATION The Komatsu excavator and its main components are identified by serial numbers stamped on the identification plates. The serial number and the identification numbers of the components are the only numbers that must be communicated to the distributor when requiring assistance and ordering spare parts.
Page 17: Machine Serial Number Plate
FOREWORD PRODUCT IDENTIFICATION MACHINE SERIAL NUMBER PLATE (according directive 2006/42/EC) (A) Serial number (E) Machine designation type (B) Operating mass (F) Year of manufacture (C) Product identification number (G) Engine power (D) Manufacturer ENGINE SERIAL NUMBER AND EXHAUST GAS EMISSION PLATE The engine serial number is stamped on the plate positioned on the engine itself.
Page 18: Travel Reduction Gear Serial Number
FOREWORD PRODUCT IDENTIFICATION TRAVEL REDUCTION GEAR SERIAL NUMBER The serial number is stamped on the plate positioned inside the travel reduction gear and can be seen after removing the cover (1). SWING REDUCTION GEAR SERIAL NUMBER The serial number is stamped on the plate positioned on the upper side of the swing motor.
Page 19: Declaration Of Conformity
FOREWORD PRODUCT IDENTIFICATION TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR Machine serial No. Engine serial No. Product identification number (PIN) Komatsu Utility Europe S.p.A. Manufacturers name: Via Atheste, 4 Address: 35042 Este (PD) Italy Authorised Representative: Address: Distributor name Address:...
Page 20: Table Of Contents
CONTENTS CONTENTS FOREWORD FOREWORD ................................. 1-2 SAFETY INFORMATION............................1-4 NOISE LEVELS ............................1-7 CAB ..............................1-7 CANOPY............................1-8 VIBRATIONS TO WHICH THE OPERATOR IS SUBJECTED ..............1-9 OPERATING CONDITION ........................ 1-9 GUIDE TO REDUCE VIBRATION LEVELS ON MACHINE .............. 1-9 INTRODUCTION..............................
Page 21 CONTENTS KEEP MACHINE CLEAN.......................... 2-15 KEEP OPERATOR'S COMPARTMENT CLEAN..................2-16 LEAVING THE OPERATOR’S SEAT ....................... 2-16 HANDRAILS AND STEPS ........................2-17 MOUNTING AND DISMOUNTING ......................2-18 NO PERSONS ON ATTACHMENTS......................2-18 DO NOT GET CAUGHT IN ARTICULATED PORTION ................2-18 BURN PREVENTION ..........................
Page 22 CONTENTS PARKING MACHINE ........................2-40 TRANSPORTING THE MACHINE......................2-42 LOADING AND UNLOADING......................2-42 SHIPPING THE MACHINE ......................2-42 BATTERY ..............................2-43 BATTERY HAZARD PREVENTION ....................2-43 STARTING ENGINE WITH BOOSTER CABLES ................2-44 TOWING ..............................2-45 SAFETY RULES FOR TOWING ..................... 2-45 LIFTING OBJECTS WITH BUCKET LINK LIFTING DEVICE (OPTIONAL EQUIPMENT).......
Page 23 CONTENTS FUNCTIONING MACHINE ILLUSTRATIONS..........................3-2 OVERALL VIEW OF THE MACHINE ......................3-2 CONTROLS AND GAUGES ........................3-3 INSTRUMENTS AND CONTROLS ........................3-4 WARNING LIGHTS AND GAUGES......................3-4 Emergency lights ..........................3-5 Gauges .............................. 3-7 Warning lights ............................ 3-9 SWITCHES AND PUSH BUTTONS ......................3-10 CONTROL LEVERS AND PEDALS ......................
Page 24 CONTENTS Operations to be carried out before starting the engine ..............3-57 Starting the engine........................... 3-59 AFTER STARTING THE ENGINE ......................3-63 Running-in ............................3-63 Stability and engine noise control ....................3-63 Engine acceleration and deceleration check ................... 3-64 Warming the engine......................... 3-64 STOPPING THE ENGINE ........................
Page 25 OIL, FUEL, COOLANT AND GREASE ....................... 4-5 Oil ..............................4-5 Fuel..............................4-6 Coolant .............................. 4-6 Grease ............................... 4-7 KOWA (KOMATSU OIL WEAR ANALYSIS)....................4-8 KOWA analysis stages ........................4-8 OIL SAMPLING ..........................4-8 STORING OIL AND FUEL .......................... 4-9 FILTERS ..............................4-9 NOTES ON THE MAINTENANCE OF THE ELECTRICAL SYSTEM............
Page 26 CONTENTS TIGHTENING TORQUES ........................... 4-15 STANDARD TIGHTENING TORQUES FOR SCREWS AND NUTS............4-15 STANDARD TIGHTENING TORQUES FOR FLEXIBLE HOSES (ORFS) ..........4-16 LUBRICATION ..............................4-17 LUBRICATION DIAGRAM ........................4-17 BALL-BEARING RING GREASING POINTS ................... 4-18 PERIODICAL CHANGE OF SAFETY-RELATED COMPONENTS ..............4-19 SAFETY-RELATED PARTS ........................
Page 27 CONTENTS CHANGING THE HYDRAULIC OIL FILTER ................... 4-59 CHANGING THE OIL IN THE FINAL REDUCTION GEARS ............4-60 CHECKING AND ADJUSTING THE ENGINE VALVE CLEARANCE ..........4-61 MAINTENANCE EVERY 1500 HOURS OF OPERATION ............... 4-62 FUEL INJECTION SYSTEM CHECK AND CLEANING ..............4-62 ENGINE CASING BREATHER PIPE CHECK.................
Page 28 CONTENTS Use of generic equipment such as the crusher ................6-13 LONG PERIODS OF INACTIVITY......................6-13 PRECAUTIONS TO BE TAKEN WHEN USING OPTIONAL EQUIPMENT ............6-14 HYDRAULIC BREAKER ........................... 6-14 Main applications ..........................6-14 How to use the breaker correctly ..................... 6-14 Always avoid the following incorrect uses ..................
Page 29: Safety
SAFETY WARNING Read and make sure that the precautions outlined in this manual and the safety labels on the machine have been fully understood. Always closely observed these safety measures when starting or performing assistance on the machine. WEAM014500...
Page 30: Safety Labels
If the labels are damaged, lost, or cannot be read properly, replace them with new ones. For details of the part numbers for the labels, see this manual or the actual label, and place an order with Komatsu distributor.
Page 31: Safety Labels
SAFETY SAFETY LABELS SAFETY LABELS Danger in the work area Do not approach or stand within the equipment operating radius when the boom and the bucket are raised. Do not open the hood. Do not open or remove the hood when the engine is running.
Page 32 SAFETY SAFETY LABELS Safety distance. Do not get too near the machine and do not stand within its operating radius. Platform lifting safety plate When the platform is open, make sure that the safety pin is correctly inserted. Caution when standing in operator cab Battery main switch WEAM014500...
Page 33 SAFETY SAFETY LABELS Precautions with the KOMTRAX system q he signal indicates danger of explosion caused by a radio transmitter active in an explosive area. q Keep the machine at a safe distance from an explosive area and from a detonator. Battery and electric cables Risk of electric charges in case of work on the battery or the electric cables.
Page 34 SAFETY SAFETY LABELS (13) Hazards during platform closing When closing the platform, avoid body parts entering into the area under the platform, as there is danger of crushing. (14) Risk of burns Do not open the radiator and the hydraulic oil tank when the engine is still hot.
Page 35 SAFETY SAFETY LABELS q Never smoke or use any naked flame near the batteries, no sparks. q When handling batteries, always wear safety goggles. q Keep children away from batteries. KS000327 q Caution - battery acid. q Read the operator’s manual before working with batteries.
Page 36 SAFETY SAFETY LABELS q Caution - explosive gases. Hydraulic oil topping up. (Only for machines in which the synthetic biodegradable oil type HEES is used) Hydraulic oil topping up Engine oil filter WEAM014500...
Page 37 SAFETY SAFETY LABELS Fuel filter Engine coolant AF-NAC q Fill Komatsu genuine engine coolant AF-NAC to prevent radiator damage by corrosion. Hydraulic oil topping up Refuelling Engine oil filter WEAM014500...
Page 38 SAFETY SAFETY LABELS Fuel filter 215-98-28970 Engine air suction filter Engine coolant Engine coolant pressure Hydraulic oil level WEAM014500 2-10...
Page 39 SAFETY SAFETY LABELS Hydraulic oil filter Electrical outlet Anchorage point Lifting point WEAM014500 2-11...
Page 40 SAFETY SAFETY LABELS Anchorage point /Lifting point 09960-01201 Emergency exit (Cab specification) WEAM014500 2-12...
Page 41 SAFETY SAFETY LABELS Lifting capacities (Canopy specification) Lifting capacities (Cab specification) WEAM014500 2-13...
Page 42: General Precautions
SAFETY GENERAL PRECAUTIONS GENERAL PRECAUTIONS SAFETY RULES q Only trained and authorized personnel can operate and maintain the machine. q Follow all safety rules, precautions and instructions when operating or performing maintenance on the machine. q If you are not feeling well, or if you are under the influence of alcohol or medication, your ability to safely operate or repair your machine may be severely impaired, putting yourself and everyone else on your job site in danger.
Page 43: Fire Extinguisher And First Aid Kit
SAFETY GENERAL PRECAUTIONS FIRE EXTINGUISHER AND FIRST AID KIT Always follow the precautions below to prepare for action if any injury or fire should occur. q Make sure there are fire extinguishers and read the labels to make sure you know how to use them in emergency situations.
Page 44: Keep Operator's Compartment Clean
SAFETY GENERAL PRECAUTIONS KEEP OPERATOR'S COMPARTMENT CLEAN q Always remove dirt and oil from the soles of shoes when entering the operator's compartment. If the pedal is operated with mud or oil under the soles of the shoes, the foot may slip, causing a serious accident.
Page 45: Handrails And Steps
SAFETY GENERAL PRECAUTIONS 3. Lock the equipment control by shifting the safety lever (1) to the “locked” position (L). q Canopy specification q Cab specification RKA32810 4. Stop the engine. 5. If you have to go so far away that you will not be able to see the machine, extract the ignition key.
Page 46: Mounting And Dismounting
SAFETY GENERAL PRECAUTIONS q To ensure safety, always face the machine and maintain three-point contact (both feet and one hand, or both hands and one foot) with the handrails and steps (including the track shoe) to ensure that you support yourself. q Do not lean on the control levers or on the locking lever when ascending on or descending from the machine.
Page 47: Burn Prevention
SAFETY GENERAL PRECAUTIONS BURN PREVENTION q To prevent burns from hot water or steam spurting out when checking or draining the coolant, wait for the water to cool to a temperature where it is possible to touch the radiator cap by hand before starting the operation. Even when the coolant has cooled down, loosen the cap slowly to relieve the pressure inside the radiator before removing the cap.
Page 48: Fire Caused By Accumulated Flammable Material
SAFETY GENERAL PRECAUTIONS q Put greasy rags and other flammable materials into a safe container to maintain safety at the work place. q Do not weld or use a cutting torch to cut any pipes or tubes that contain flammable liquids. FIRE CAUSED BY ACCUMULATED FLAMMABLE MATERIAL q Remove any accumulated flammable material, such as dry leaves, chips, pieces of paper, and coal dust from inside the undercover or around the engine exhaust manifold, muffler, or battery.
Page 49: Falling Objects, Flying Objects And Intruding Objects Prevention
If ROPS is damaged or deformed by falling objects or by rolling over, its strength will be reduced and it will not be able to fulfill its function properly. In such cases, always Komatsu contact your distributor for advice of the method of repair.
Page 50: Attachment Installation
Any modification made without authorization from Komatsu can create hazards. Before making a modification, consult your Komatsu distributor. q Komatsu will not be responsible for any injuries, accidents, product failures or other property damages resulting from modifications made without authorization from Komatsu.
Page 51: Safety At Jobsite
SAFETY GENERAL PRECAUTIONS SAFETY AT JOBSITE Before starting operations, thoroughly check the area for any unusual conditions that could be dangerous. q When carrying out operations near combustible materials such as thatched roofs, dry leaves or dry grass, there is a hazard of fire, so be careful when operating. q Check the terrain and condition of the ground at the worksite, and determine the safest method of operation.
Page 52: Distance To High Voltage Cables
SAFETY GENERAL PRECAUTIONS DISTANCE TO HIGH VOLTAGE CABLES Digging operations near overhead electric lines are extremely d a n g e r o u s a n d t h e y m a y a l s o c a u s e d e a t h d u e t o electrocution;...
Page 53: Ensure Good Visibility
SAFETY GENERAL PRECAUTIONS ENSURE GOOD VISIBILITY q Check for any persons or obstacles in the area around the machine and check the conditions of the jobsite to ensure that operations and travel can be carried out safely. Always do as follows. q When working in dark places, turn on the working lamp and front lamps installed to the machine, and set up additional lighting in the work area if necessary.
Page 54: Signalman's Signal And Signs
SAFETY GENERAL PRECAUTIONS SIGNALMAN'S SIGNAL AND SIGNS q Set up signs to inform of road shoulders and soft ground. q When it is necessary to position loads, make excavations or move the machine with reduced field of vision, the operator must be helped by another person standing on the ground and making signals to indicate the manoeuvres to be carried out, according to the specific signals defined by the relevant regulations.
Page 55 SAFETY GENERAL PRECAUTIONS q MOVE THE LOAD AWAY IN HORIZONTAL DIRECTION With an arm extended forwards and the hand in vertical position directed towards the load to be moved away, move the hand in the direction of the movement to be carried out. q BRING LOAD NEARER...
Page 56 SAFETY GENERAL PRECAUTIONS q LOWER THE BOOM With an arm extended in horizontal position and closed fingers, point the thumb downwards. q FOLD THE ARM With both hands clasped, point the thumbs inwards. RKA32990 q EXTEND THE ARM With both hands clasped, point the thumbs outwards. q FOLD THE BUCKET Keep one hand still and closed.
Page 57 SAFETY GENERAL PRECAUTIONS q TRAVEL WHILE STEERING Lift the forearm corresponding to the inner steering side with clenched fist. Rotate the other fist vertically indicating the wheel’s turning direction. q TRAVEL STRAIGHT AHEAD Rotate the fists vertically indicating the turning direction of the wheels.
Page 58 SAFETY GENERAL PRECAUTIONS q CARRY OUT THE MOVEMENTS SLOWLY One hand still in front of the hand that indicates the movement to be carried out. (The figure represents the “lift slowly” control). q STOP With one arm extended laterally, open the hand facing downwards and move the arm forwards and backwards.
Page 59: Emergency Exit From Operator's Cab
Always observe the rules and regulations for the work site and environmental standards. This machine does not use asbestos, but there is a danger that imitation parts may contain asbestos, so always use genuine Komatsu parts. WEAM014500 2-31...
Page 60: Safety Machine Operation
SAFETY SAFETY MACHINE OPERATION SAFETY MACHINE OPERATION STARTING ENGINE If there is a warning tag hanging from the work equipment control lever, do not start the engine or touch the levers. CHECKS BEFORE STARTING ENGINE Carry out the following checks before starting the engine at the beginning of the day's work. q Remove all dirt from the surfaces of windows, headlights and working lights and check the that the lights are functioning correctly.
Page 61 Open the triangular trunk, the engine bonnet and the tank housing and make sure that the fixing screws (n°4) (1) from platform are properly fixed. q If any anomaly is observed, carry out the necessary repairs or have them carried out by your Komatsu distributor. WEAM014500 2-33...
Page 62: Safety Rules For Starting Engine
SAFETY SAFETY MACHINE OPERATION SAFETY RULES FOR STARTING ENGINE q Start and operate the machine only while seated. q Do not attempt to start the engine by short-circuiting the engine starting circuit. Such an act may cause a serious bodily injury or fire. q When starting the engine, sound the horn as a warning.
Page 63: Functioning
SAFETY SAFETY MACHINE OPERATION FUNCTIONING CHECKS BEFORE OPERATION When carrying out the checks, move the machine to a wide area where there are no obstructions, and operate slowly. Do not allow anyone near the machine. q Always fasten your seat belt. q Check the operation of the gauges and equipment, and check the operation of the bucket, arm, boom, travel system, swing system, and steering system.
Page 64: Safety Standards When Running
SAFETY SAFETY MACHINE OPERATION SAFETY STANDARDS WHEN RUNNING q It is dangerous to drive too fast, or to start suddenly, stop suddenly, or to turn sharply. q When traveling on flat ground, keep the work equipment 40 to 50 cm (16 to 20 in) high above the ground. q Move at low speed and do not turn the steering wheel abruptly when moving over rough terrain.
Page 65: Moving In Gradients
SAFETY SAFETY MACHINE OPERATION MOVING IN GRADIENTS q Operations on slopes and on river or lake banks with damp ground may result in the tipping over or slipping of the machine. q On hills, banks or slopes, keep the bucket very close to the ground (20-30 cm from the ground) and in case of emergency quickly lower it to the ground to help the machine stop.
Page 66: Operations On Slopes
SAFETY SAFETY MACHINE OPERATION OPERATIONS ON SLOPES q When working on slopes, there is a hazard that the machine may lose its balance and turn over when the swing or work equipment are operated. This may lead to serious injury or property damage, so always provide a stable place when carrying out these operations, and operate carefully.
Page 67 SAFETY SAFETY MACHINE OPERATION q Do not carry out demolition work under the machine. There is a hazard that the machine may become unstable and tip over. q When working on or from the top of buildings or other structures, check the strength and the structure before starting operations.
Page 68: Operations On Snow
SAFETY SAFETY MACHINE OPERATION OPERATIONS ON SNOW q Snow-covered or frozen surfaces are slippery, so be extremely careful when traveling or operating the machine, and do not operate the levers suddenly. Even a slight slope may cause the machine to slip, so be particularly careful when working on slopes.
Page 69 SAFETY SAFETY MACHINE OPERATION q If the machine needs to be parked on a ravine, do so as follows. q Set the bucket on the downhill side, then dig it into the ground. q Put blocks under the track to prevent the machine from moving.
Page 70: Transporting The Machine
SAFETY SAFETY MACHINE OPERATION TRANSPORTING THE MACHINE LOADING AND UNLOADING When loading or unloading the machine, mistaken operation may bring the hazard of the machine tipping over or falling, so particular care is necessary. Always do as follows: q Perform loading and unloading on firm, level ground only. Maintain a safe distance from the edge of the road or cliff.
Page 71: Battery
SAFETY SAFETY MACHINE OPERATION BATTERY BATTERY HAZARD PREVENTION Battery electrolyte contains sulphuric acid, and batteries generate flammable hydrogen gas, which may explode. Mistaken handling can lead to serious injury or fire. For this reason, always observe the following precautions. q Do not use or charge the battery if the battery electrolyte level is below the LOWER LEVEL line. This may cause an explosion.
Page 72: Starting Engine With Booster Cables
SAFETY SAFETY MACHINE OPERATION STARTING ENGINE WITH BOOSTER CABLES If any mistake is made in the method of connecting the booster cables, it may cause the battery to explode, so always do as follows. q When starting with a booster cable, carry out the starting operation with two workers (one worker sitting in the operator's seat and the other working with the battery).
Page 73: Towing
SAFETY SAFETY MACHINE OPERATION TOWING SAFETY RULES FOR TOWING Serious injury or death could result if a disabled machine is towed incorrectly or if there is a mistake in the selection or inspection of the wire rope. For towing, see "REMOVING THE MACHINE (3-112)". q Always wear leather gloves when handling wire rope.
Page 74: Lifting Objects With Bucket Link Lifting Device (Optional Equipment)
SAFETY SAFETY MACHINE OPERATION LIFTING OBJECTS WITH BUCKET LINK LIFTING DEVICE (OPTIONAL EQUIPMENT) SAFETY RULES FOR LIFTING OBJECTS q Determine the signals to be used and place a signalman in position. q To prevent the machine from tipping over or falling, carry out the operation on flat ground. q To prevent the danger of contact with a raised load or the danger from a falling load, do not allow any worker inside the area.
Page 75 SAFETY SAFETY MACHINE OPERATION q Do not use the work equipment or swing to pull the load in any direction. There is a danger that the lifting eye may be damaged due to abnormal loading making it unsafe to lift. q The operator or person attaching the sling should inspect the bucket link lifting device and all components in the load line (e.g.
Page 76: Lifting Objects With Bucket
SAFETY SAFETY MACHINE OPERATION LIFTING OBJECTS WITH BUCKET SAFETY RULES FOR LIFTING OBJECTS q Determine the signals to be used and place a signalman in position. q To prevent the machine from tipping over or falling, carry out the operation on flat ground. q To prevent the danger of contact with a raised load or the danger from a falling load, do not allow any worker inside the area.
Page 77: Safety Maintenance Information
SAFETY SAFETY MAINTENANCE INFORMATION SAFETY MAINTENANCE INFORMATION WARNING TAG q Always attach the “DO NOT OPERATE“ warning tag to the work equipment control lever in the operator's cab to alert others that you are performing service or maintenance on the machine. Attach additional warning tags around the machine if necessary.
Page 78: Stop Engine Before Carrying Out Maintenance
SAFETY SAFETY MAINTENANCE INFORMATION STOP ENGINE BEFORE CARRYING OUT MAINTENANCE q Stop the machine on a solid and flat surface q Turn the ignition switch to OFF, wait approximately one minute, then turn battery main switch to OFF and remove q Select a place where there is no hazard of landslides, falling rocks, or flooding.
Page 79: Cautions For Opening (Tilting) Floor
SAFETY SAFETY MAINTENANCE INFORMATION CAUTIONS FOR OPENING (TILTING) FLOOR When opening (tilting) the cab or floor, see "TILTING THE CAB FLOOR (3-35)" for details. q Park the machine on firm, level ground. q Select a place where there is no hazard of landslides, falling rocks, or flooding.
Page 80: Maintenance With Engine Running
SAFETY SAFETY MAINTENANCE INFORMATION MAINTENANCE WITH ENGINE RUNNING To prevent personal injury, do not carry out maintenance with the engine running.If maintenance must be carried out with the engine running, carry out the operation with at least two workers and do as follows. q One worker must always sit in the operator's seat and be ready to stop the engine at any time.
Page 81: Proper Tools
Do not hit or roll the accumulator, or subject it to any impact. q When disposing of the accumulator, the gas must be released. Please contact your Komatsu distributor to have this work performed. PERSONNEL Do not allow any unauthorized personnel into the area when servicing the machine. If necessary, employ a guard.
Page 82: Work Under The Machine
SAFETY SAFETY MAINTENANCE INFORMATION WORK UNDER THE MACHINE q If it is necessary to go under the work equipment or the machine to carry out service and maintenance, support the work equipment and machine securely with blocks and stands strong enough to support the weight of the work equipment and machine.
Page 83: Using Lamps
Never attempt to disassemble the recoils spring assembly. It contains a spring under high pressure which serves as a shock absorber for the idler. If it is disassembled by mistake, the spring will fly out and cause serious injury. When it becomes necessary to disassemble it, ask your Komatsu distributor to do the work. WEAM014500...
Page 84: Safety Rules For High-Pressure Oil
If any loose bolts are found, stop work and tighten to the specified torque. If any damaged hoses are found, stop operations immediately and contact your Komatsu distributor. Replace the hose if any of the following problems are found.
Page 85: Waste Materials
SAFETY SAFETY MAINTENANCE INFORMATION WASTE MATERIALS To prevent pollution, pay careful attention to the method of disposing of waste materials. q Always put oil drained from your machine in containers. Never drain oil directly onto the ground or dump into the sewage system, rivers, the sea, or lakes.
Page 86: Precautions Concerning The Battery And The Alternator
CHEMICAL HAZARD q During maintenance or dismalting operations, where there is a risk of contact with hazardous chemival substances, relevant safety precautions should be taken. If any doubt exists, contact your Komatsu distributor. See also disposal of "WASTE MATERIALS" (2-57)
Page 87: Precautions To Be Taken When Handling Technopolymers And Elastomers
(see "Check the oil level in the hydraulic tank and top up (3-51)"). FINAL DISPOSAL OF THE MACHINE q At the end of the working life of the machine, ask Komatsu distributor for the final disposal. WEAM014500...
Page 88 SAFETY SAFETY MAINTENANCE INFORMATION WEAM014500 2-60...
Page 89: Functioning
FUNCTIONING WARNING Before reading this section, make sure you have read and understood the section on safety. WEAM014500...
Page 90: Machine Illustrations
FUNCTIONING MACHINE ILLUSTRATIONS MACHINE ILLUSTRATIONS OVERALL VIEW OF THE MACHINE Bucket Track Bucket cylinder Sprocket Undercarriage Arm cylinder (10) Idler roller Boom (11) Blade cylinder Boom cylinder (12) Blade WEAM014500...
Page 91: Controls And Gauges
FUNCTIONING MACHINE ILLUSTRATIONS CONTROLS AND GAUGES (19) Ignition switch Operator seat (20) Cab floor locking lever Working lights switch (21) Fuel level indicator Revolving light switch (if installed) (22) Hour meter Boom overload alarm switch (if installed) (23) Engine coolant temperature indicator Control locking lever left (24) Engine preheating warning light Left work equipment control lever...
Page 92: Instruments And Controls
FUNCTIONING INSTRUMENTS AND CONTROLS INSTRUMENTS AND CONTROLS The following paragraphs describe the devices that are necessary for correct operation of the machine. To perform the required operations correctly and safely, it is important to understand the equipment operating methods and the meaning of the information displayed. WARNING LIGHTS AND GAUGES Emergency lights Indicators display...
Page 93: Emergency Lights
FUNCTIONING INSTRUMENTS AND CONTROLS Emergency lights CAUTION If a warning light comes on or the acoustic alarm sounds while the engine is running, stop the engine immediately and try to locate the cause of the failure. These warning lights must always be checked while the engine is running. If any anomaly occurs, the warning light corresponding to the faulty function comes on and the acoustic alarm starts sounding.
Page 94 FUNCTIONING INSTRUMENTS AND CONTROLS (2) Battery charge level warning light It lights and sounds the sound alarm when the ignition circuit is energised and turns off when the engine exceeds the idling speed. If this indicator light stays on when the engine is running at full operating speed, this signals that the alternator is not working, and therefore the battery is not charging properly.
Page 95: Gauges
FUNCTIONING INSTRUMENTS AND CONTROLS Gauges Engine coolant temperature indicator Hour meter Fuel level indicator (1) Engine coolant temperature indicator It indicates the engine coolant temperature, which should normally be approximately 80–85°C. After starting the engine, let it warm up before starting work. If the indicator exceeds the set values during operation and reaches the red overheating area (B), let the engine idle until the indicator returns within the normal operating range (A).
Page 96 FUNCTIONING INSTRUMENTS AND CONTROLS (2) Fuel level indicator It indicates the fuel level in the tank and functions only when the ignition key is in position "I" (see "Ignition switch (3-11)"). F: maximum level. E: minimum level. If the quantity of fuel in the tank is less than 6 litres, the indicator reaches the red reserve area (A) and the warning light (B) blinks.
Page 97: Warning Lights
FUNCTIONING INSTRUMENTS AND CONTROLS Warning lights Engine preheating warning light Travel speed increase warning light (1) Engine preheating warning light This warning light comes on when the ignition key is turned to the preheating position (HEAT) to start the engine at low temperatures.
Page 98: Switches And Push Buttons
FUNCTIONING INSTRUMENTS AND CONTROLS SWITCHES AND PUSH BUTTONS Ignition switch Windshield wiper switch (Cab specification) Horn Overhead light switch (Cab specification) Travel speed selection switch (10) Battery main switch Working lights switch Revolving light switch (if installed) Boom overload alarm switch (if installed) Cab heating and ventilation switch (Cab specification) WEAM014500 3-10...
Page 99 FUNCTIONING INSTRUMENTS AND CONTROLS (1) Ignition switch This is a four-position rotary switch and is used to switch the engine on and off. Position OFF (A) When the switch is in this position, the ignition key can be inserted and removed. When the key is turned to this position, the power supply to the electric circuit is interrupted and the engine stops.
Page 100 FUNCTIONING INSTRUMENTS AND CONTROLS (3) Travel speed selection switch WARNING q When loading or unloading the machine on/from a trailer, always travel at low speed. Never operate the travel speed selection switch during the loading or unloading operation. q If the translation speed shifts from high to low while the machine is moving, the latter may swerve to one side even if moving straight on.
Page 101 FUNCTIONING INSTRUMENTS AND CONTROLS (5) Revolving light switch (if installed) It is an ON-OFF switch used to turn on the beacon light (LED on). RKA33400 (6) Boom overload alarm switch (if installed) It is an ON-OFF switch that is pressed (LED on) to enable the boom overload device so that it indicates the moment when the load limit is reached.
Page 102 FUNCTIONING INSTRUMENTS AND CONTROLS (8) Windshield wiper switch (Cab specification) Switch (8) activates the front windscreen wiper and it is also used as windscreen washer switch. The switch functions as described below: q Windshield wiper only Press the switch to position (B) to start the windshield wiper.
Page 103 FUNCTIONING INSTRUMENTS AND CONTROLS (10) Battery main switch The battery main switch is located inside the engine compartment and can be reached by opening the tank housing (see "ENGINE HOOD (3-32)"). Turn the key anticlockwise, to (O) OFF, to interrupt the current supplied by the battery to the electrical system;...
Page 104: Control Levers And Pedals
FUNCTIONING INSTRUMENTS AND CONTROLS CONTROL LEVERS AND PEDALS Control locking safety lever Cab floor locking lever Left work equipment control lever (10) Control pedal locking device optional tools Right work equipment control lever (11) Optional equipment control pedal Accelerator lever Blade control lever Travel levers (equipped with pedal) Boom swing control pedal locking device...
Page 105 FUNCTIONING INSTRUMENTS AND CONTROLS (1) Control locking safety lever WARNING q Before leaving the driver seat, lower the equipment to the ground and shift the safety lever to the “locked” position (L). If the safety lever is not in the locking position and the control levers are inadvertently touched, this can cause accidents or serious injuries.
Page 106 FUNCTIONING INSTRUMENTS AND CONTROLS (2)Left work equipment control lever (3)Right work equipment control lever WARNING q Before carrying out any manoeuvre with these levers, the operator must seat in the work position and fasten the seat belt. q Before leaving the driver seat, lower the equipment to the ground, lock the controls with the safety lever and stop the engine.
Page 107 FUNCTIONING INSTRUMENTS AND CONTROLS The control lever (2) is positioned on the operator’s left and controls the arm and the turret swing. q Swing function (a) Swing to the right (b) Swing to the left q Arm (c) Fold (d) Extend q N (Neutral): the turret and the arm are held in the position where they stopped.
Page 108 FUNCTIONING INSTRUMENTS AND CONTROLS (6) Travel levers (equipped with pedal) WARNING q Before carrying out any manoeuvre with these levers, the operator must seat in the work position and fasten the seat belt. q Before moving the machine, make sure that the sprocket (A) is positioned at the rear of the machine and that the safety locks are engaged;...
Page 109 FUNCTIONING INSTRUMENTS AND CONTROLS (7) Boom swing control pedal locking device WARNING Always shift the safety lever to position (L) when the boom swing is not required, during travel and when parking the machine. If the control pedal is inadvertently pressed, this may cause serious accidents.
Page 110 FUNCTIONING INSTRUMENTS AND CONTROLS (9) Cab floor locking lever WARNING Always keep to the warnings when tilting or closing the cab floor. Any operation carried out incorrectly may cause serious injury. Do not tilt or close the cab floor on slopes or if there is a strong wind.
Page 111: Cab
(ROPS/FOPS level 1). If there is a collision against the machine, or in case it turns over, have a Komatsu distributor check that the cab complies with the stiffness and active safety standards the operator needs.
Page 112 FUNCTIONING 2. Shift the safety lever (1) to the “locked” position (L). RKA32810 3. Make sure that the windshield wiper is positioned correctly. 4. 4.Seize the handles (A) at the right or left top of the front windscreen and push the locking levers (B) down to release the windscreen.
Page 113 FUNCTIONING 5. Seize the handles (C) and (D), pull up the windscreen and push it until the lock (E) is tripped. WEAM014500 3-25...
Page 114 FUNCTIONING Closing WARNING When closing the windshield, lower it slowly and pay attention to your hands. 1. Stop the machine on a level surface, lower the equipment completely to the ground, then stop the engine. 2. Shift the safety lever (1) to the “locked” position (L). RKA32810 3.
Page 115 FUNCTIONING 5. When the windscreen lower part reaches the upper part of the lower glass, push the windscreen upper section forwards against the locking catches (G). WEAM014500 3-27...
Page 116: Door
FUNCTIONING DOOR WARNING q When the cab door is opened or closed, always take the safety device lever (1) to the locking position (L). If the control levers are not locked and are inadvertently operated, there is the risk of serious accidents. q Make sure that the door is locked whether it is opened or closed.
Page 117: Sliding Side Window
FUNCTIONING SLIDING SIDE WINDOW WARNING q When opening or closing the side window, always set the safety device lever (1) to locking position (L). If the control levers are not locked and are inadvertently operated, there is the risk of serious accidents. q Keep hands and head must remain inside the cab window during translation or when digging operations are carried out.
Page 118: Emergency Exit Hammer
FUNCTIONING EMERGENCY EXIT HAMMER WARNING q When it is necessary to break the window with the hammer, pay attention not to get injured by glass chips. q Before leaving the operator cab, remove any glass fragments from the window edges and take care not to injure yourself.
Page 119: Caps And Covers With Lock
FUNCTIONING CAPS AND COVERS WITH LOCK CAPS AND COVERS WITH LOCK Use the ignition key to open and close the caps and covers with lock. For details on the position of caps and covers with lock, see "LOCKING THE MACHINE (3-89)". Introduce the key completely (6 mm from the point where the key narrows), then turn it.
Page 120: Engine Hood
FUNCTIONING CAPS AND COVERS WITH LOCK ENGINE HOOD WARNING q Do not open the engine hood when the engine is running. q Do not use the machine without engine hood and do not start the engine when the hood is open, unless this is expressly prescribed for certain maintenance operations.
Page 121: Radiator Cover
FUNCTIONING CAPS AND COVERS WITH LOCK RADIATOR COVER WARNING When carrying out an inspection or maintenance operation inside the radiator cover, always open it completely and make sure that it is kept open by the apposite rod. Opening the battery cover 1.
Page 122: Tank Cover
FUNCTIONING CAPS AND COVERS WITH LOCK TANK COVER WARNING Avoid climbing up the cover, since there is the risk of slipping and falling down. NOTICE q Always keep the tank cover closed, unless expressly indicated otherwise for any maintenance operations. q Carefully check the direction of the slot to make sure that the cap is locked.
Page 123: Tilting The Cab Floor
If there is something wrong in the locking function when the cab floor is tilted, interrupt work and have the necessary repairs carried out by your Komatsu distributor. q Do not remove the canopy. The cab floor may tilt suddenly.
Page 124 FUNCTIONING TILTING THE CAB FLOOR 3. Place the lever of the safety device (1) in the locking position (L) and stop the engine. q Canopy specification q Cab specification RKA32810 4. Place safety blocks under the tracks to prevent the machine from moving.
Page 125 FUNCTIONING TILTING THE CAB FLOOR 7. Open the radiator cover (5) completely and make sure that it is kept open by the apposite rod (for further details, see "RADIATOR COVER (3-33)"). 8. Loosen the fastening screws of the cab floor (6). 9.
Page 126 3. Tighten the cab floor fastening screws (6) applying the required torque. Tightening torque: 156.8 to 196 Nm REMARK If any screw is damaged, replace it with an original Komatsu part having the same size. WEAM014500 3-38...
Page 127 FUNCTIONING TILTING THE CAB FLOOR Close the radiator cover (5) and the engine hood (4). Install the triangular cover (3). WEAM014500 3-39...
Page 128: Supplementary Power Supply
FUNCTIONING SUPPLEMENTARY POWER SUPPLY SUPPLEMENTARY POWER SUPPLY POWER OUTLET A power outlet is positioned on the front part of the machine for the connection of a lamp for routine and maintenance operations. It is a two-pole outlet and is in compliance with the ISO 4165- 1979 standard.
Page 129: Fuses
FUNCTIONING FUSES FUSES NOTICE q Before replacing fuses, be sure to first turn the starting switch to the OFF position, wait for over one minute, then switch the battery disconnect switch to OFF and take out the battery disconnect switch key.
Page 130: Main Fuse
FUNCTIONING FUSES MAIN FUSE NOTICE q Before replacing fuses, be sure to first turn the starting switch to the OFF position, wait for over one minute, then switch the battery disconnect switch to OFF and take out the battery disconnect switch key.
Page 131: Storage Compartments
FUNCTIONING STORAGE COMPARTMENTS STORAGE COMPARTMENTS TECHNICAL DOCUMENTATION COMPARTMENT NOTICE The use and maintenance manual is an integral part of the machine and must accompany it even in case of resale. The use and maintenance manual must be stored with care and always kept on board the machine, so that it can be consulted at any moment;...
Page 132: Komtrax System
KOMTRAX SYSTEM q KOMTRAX is a system that uses wireless communication technology to monitor machines. q The KOMTRAX system can be used only after contacting the Komatsu distributor and having entered into a contract with him. q As it is a wireless system, the KOMTRAX equipment uses radio waves; therefore, a due permit is required as well as compliance with the regulations in force in the country or territory where the machine is used.
Page 133 FUNCTIONING KOMTRAX SYSTEM q Be careful not to let water deposit on the communication terminals or their cables. q Do not disconnect or tamper with the KOMTRAX communication terminal; consult the Komatsu distributor in case of failures. REMARK As KOMTRAX is a wireless system, it cannot be used inside tunnels, undergrounds, buildings or in mountainous areas where radio waves cannot be received.
Page 134: Use Of The Machine And Related Controls
Any oil or fuel leaks may cause fire in the machine. Always carry out accurate controls and repair the possible failures; if they repeat, contact the Komatsu distributor. q Make sure that the cab floor is properly fastened with the screws (1).
Page 135: Checks Performed Before Starting The Engine
(1) are correctly tightened. If there are loose screws, tighten them. If any anomaly is observed, carry out the necessary repairs or have them carried out by your Komatsu distributor. Checks performed before starting the engine Carry out the checks listed below every day before starting the engine.
Page 136 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS 1. Open the engine hood and the radiator cover. For details, see paragraph "RADIATOR COVER (3-33)" 2. Make sure that the coolant level is included between the FULL and LOW marks on the expansion tank (1). If the level is low, top up through the filler neck of the tank (1), until reaching the FULL mark.
Page 137 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Checking the engine oil level and topping up WARNING Soon after the machine has been stopped the engine is very hot and may cause burns; let the engine cool down to 40-45°C before carrying out any check. CAUTION When carrying out an inspection or maintenance operation inside the engine hood, always open it completely and make sure that it is kept open by the apposite rod.
Page 138 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Check fuel level and top up WARNING q When refuelling, avoid spilling fuel, since this may cause a fire hazard. If fuel is spilled, wipe it up immediately. q Fuel is highly flammable; do not use naked flames and do not smoke when refuelling. Hold the fuel gun constantly in contact with the filler.
Page 139 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Check the oil level in the hydraulic tank and top up WARNING q Carry out this check when the oil is cold, with the machine positioned on level ground, bucket and arm cylinders retracted and bucket teeth resting on the ground.
Page 140 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS 5. Extend the boom, arm and bucket cylinders completely, as shown in the diagram on the right, and remove the filler cap. Put back the cap and pressurize the tank, lowering the equipment to the ground.
Page 141 OFF. q If cable harness have short-circuit traces, contact the Komatsu distributor to find the failure cause and repair it.
Page 142: Adjustment
1. Turn the ignition switch to position ON. 2. Press the button on the right lever and make sure that the horn is working properly. If the horn does not sound, contact your local Komatsu distributor for repairs. RKA33710 Adjustment WARNING q Adjust the position of the seat before starting work or when taking the place of another operator.
Page 143 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Rear view mirrors WARNING q Always check the cleaning and correct orientation of the rear-view mirrors before starting to work; they must allow to control the rear area control without moving the log in relation to the normal working position.
Page 144 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Mirror (B) q Adjust the angle so that the rear panel of the machine is reflected on the mirror. Mirror (C) q Adjust the angle so that the operator is able to see a person who is standing on the ground, and 1 m behind the machine from the operator's seat.
Page 145: Operations To Be Carried Out Before Starting The Engine
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Adjusting the seat belt (A) How to shorten the belt Pull the free end of the belt on the tang side. (B) How to lengthen the belt Pull the belt, keeping it perpendicular to the tang. Operations to be carried out before starting the engine WARNING q When starting the engine, make sure that the safety lever is in the “locked”...
Page 146 Travel speed increase warning light (9) If a warning light or indicator does not turn on, or the sound alarm does not go on, contact a Komatsu distributor, who will carry out all the necessary repair operations. After approximately 3 seconds, only the following warning lights remain on.
Page 147: Starting The Engine
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS 6. Press the horn button (11) to make sure that the horn functions correctly. Starting the engine Start-up with hot engine or mild weather WARNING q Before starting the engine, carefully read the instructions and information regarding safety contained in this manual and make sure that you know the controls.
Page 148 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS q Cab specification RKA32810 2. Pull the accelerator lever (2) midway between the idling position (A) and the maximum speed position (B). 3. Turn the ignition key (3) to position START to start the engine.
Page 149 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Starting with cold engine or in cold climates WARNING q Before starting the engine, carefully read the instructions and information regarding safety contained in this manual and make sure that you know the controls. Once the engine is started, the operator is absolutely responsible for the damages deriving from false manoeuvres or failure to observe safety regulations..
Page 150 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS 2. Pull the accelerator lever (2) completely, from the idling position (A) to the maximum speed position (B). 3. Turn the ignition key (3) to the preheating position (HEAT) and make sure that the preheating warning light (4) comes After approximately 18 seconds, the warning light (4) goes out, indicating that the preheating phase has been completed.
Page 151: After Starting The Engine
Verify that there are no unusual noises when the engine is started, when the engine is idling or when the rpm is increased slightly. q Check that the engine starts easily and smoothly; if abnormal noise is heard, contact your local Komatsu distributor for inspection.
Page 152: Engine Acceleration And Deceleration Check
In case of malfunction of the engine at low speed and in acceleration, and when these conditions persist, the engine may be damaged or the operations performed are likely to become dangerous and cause accidents; contact your local Komatsu distributor for inspection. Warming the engine...
Page 153 5. Make sure that the colour of the exhaust gases is normal and that there are no strange noises or vibrations. If there is any failure, contact the Komatsu distributor. 6. Shift the safety lever (2) to the “locked” position (L), then make sure that the machine does not move even when the levers and pedals are operated.
Page 154: Stopping The Engine
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS STOPPING THE ENGINE NOTICE q The engine stop under stress shortens the useful life. q Do not stop the engine under stress, unless in emergency cases. Do not stop the engine suddenly, except in case of emergency.
Page 155: How To Move The Machine
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS HOW TO MOVE THE MACHINE WARNING q Before moving the machine, make sure that you perfectly know the control functions and all the relevant safety regulations. q The operator must be seated in the driving position with fastened seat belt. q Before operating the travel levers, check the direction of the undercarriage.
Page 156: Moving The Machine Forward
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Moving the machine forward 1. Move the safety lever (2) to working position (F) and lift the bucket from the ground. q Canopy specification q Cab specification 2. Lift the working equipment 40–50 cm from the ground. 3.
Page 157: Reverse
When the load is reduced, the travel system automatically changes over to high speed. 6. Make sure that the travel alarm functions correctly. If the alarm does not sound, contact your Komatsu distributor, which will carry out the necessary repairs. Reverse 1.
Page 158 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS q Cab specification 2. Lift the working equipment 40–50 cm from the ground. 3. Lift the blade. 4. Activate both translation levers (3) or pedals (4) as described below. q When the driving wheel (A) is at the rear of the machine, pull the levers (3) or pedals (4) slowly backward to start reversing.
Page 159: Machine At Rest
When the load is reduced, the travel system automatically changes over to high speed. 6. Make sure that the travel alarm functions correctly. If the alarm does not sound, contact your Komatsu distributor, which will carry out the necessary repairs. Machine at rest.
Page 160: Steering The Machine
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS STEERING THE MACHINE Steering (changing direction) WARNING q Before operating the travel control levers, check the position of the sprocket. If the sprocket is at the front, the operation of the travel levers is inverted. q Avoid abrupt changes of direction as much as possible.
Page 161 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Changing direction When steering to the left: If the left travel lever is shifted back to the neutral position, the machine will steer to the left. (A) Forward left (B) Back left REMARK To steer to the right, operate the right travel lever in the same way.
Page 162: Turret Rotation
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS TURRET ROTATION WARNING Before swinging the turret, make sure that the area around the machine is safe. 1. To swing the turret, use the left work equipment control lever (1). 2. When the swing function is not used, shift the left lever (1) to the neutral position (N).
Page 163: Work Equipment Controls And Functions
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS WORK EQUIPMENT CONTROLS AND FUNCTIONS Working tools are controlled by the levers positioned to the operator's right and left. The left lever controls the 2nd boom and the turret rotation, while the right lever controls the 1st boom and the bucket. When the levers are released, they automatically return to a neutral position and the working tools remain in the position in which they were stopped.
Page 164 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS q Boom swing control Use the rotation control pedal to rotate the first boom. q Blade control Move the lever on the right of the operator's seat forward or backward to operate the blade. q Optional equipment control Press the pedal located on the left of the translation pedals to operate the optional equipment.
Page 165: Unauthorized Operations
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS UNAUTHORIZED OPERATIONS WARNING If it is necessary to operate the work equipment control levers while the machine is moving, carry out this operation with the maximum care. Operations for which it is not allowed to exploit the turret swing Do not use the turret swing force to compact soil or break earth mounds or walls.
Page 166 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Operations for which it is not allowed to exploit the dropping force of the bucket Do not exploit the dropping force of the bucket to use it as a pickaxe, breaker, or pile driver. This may considerably reduce the life of the machine.
Page 167: Precautions For Use
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS PRECAUTIONS FOR USE Travel function Travelling on big stones, logs or other obstacles subjects the frame and in particular the tracks to considerable strain, which damages the machine. For this reason, it is always advisable to remove any obstacles or to avoid them, if possible.
Page 168 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Maximum water depth CAUTION When the machine is taken out of the water, if the machine inclination is higher than 15°, the rear part of the turret will be submerged and this can cause the cooling fan break. For this reason, pay special attention when the machine is coming out the water.
Page 169: Precautions To Be Taken When Travelling On Slopes
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS PRECAUTIONS TO BE TAKEN WHEN TRAVELLING ON SLOPES WARNING q When travelling downhill on steep slopes, slow down using the travel levers and the hand accelerator. Do not travel downhill on slopes whose inclination exceeds 15°. q Swinging or using the work equipment on slopes may cause the machine to lose stability and overturn, therefore it is advisable to avoid these operations.
Page 170 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS 2. When travelling uphill on a slope, position the work equipment as shown in the diagram on the right. Braking when travelling downhill To brake when travelling downhill, shift the travel levers to the neutral position. This will automatically engage the brakes.
Page 171: Getting The Machine Out Of Mud
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS GETTING THE MACHINE OUT OF MUD Always proceed carefully to avoid getting stuck in mud. However, if the machine gets stuck in mud, proceed as indicated below. When one side only gets stuck NOTICE When the 1st or 2nd boom is used to lift the machine, always place the lower part of the bucket in contact with...
Page 172: Operations That Can Be Performed With The Hydraulic Excavator
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS OPERATIONS THAT CAN BE PERFORMED WITH THE HYDRAULIC EXCAVATOR In addition to those listed below, numerous other applications are possible through the use of optional equipment. Digging with reversed bucket When the machine is in the position shown in the diagram on the right, the maximum digging and thrusting force of each cylinder is achieved when the bucket cylinder and its articulated joint, the arm cylinder and the arm are at 90°...
Page 173 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Filling/levelling operations Use the blade to refill after excavation or to level the ground surface. Side ditching work The machine can be used for side ditching in confined spaces by combining the turret swing and boom swing functions. WEAM014500 3-85...
Page 174: Changing The Bucket
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS CHANGING THE BUCKET WARNING q When the coupling pins are removed or installed, chips may come off; always use gloves, goggles and helmet. q The change of the equipment must be carried out by two operators, who must decide together the words and signals to be used during work.
Page 175: Parking The Machine
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS PARKING THE MACHINE WARNING q Avoid stopping the machine abruptly. Always calculate a sufficient safety distance when stopping. q Park the machine on firm and level ground. Avoid parking the machine on slopes. If it is absolutely necessary to park the machine on a slope, put blocks under the tracks and thrust the work equipment into the ground to prevent the machine from moving.
Page 176: Checks To Be Carried Out Before Stopping The Engine
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS 3. Lower the bucket horizontally until its bottom touches the ground. 4. Lower the blade to the ground. 5. Shift the safety lever (3) to the “locked” position (L). q Canopy specification q Cab specification RKA32813 CHECKS TO BE CARRIED OUT BEFORE STOPPING THE ENGINE...
Page 177: Checks To Be Carried Out After Work
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS CHECKS TO BE CARRIED OUT AFTER WORK 1. Walk around the machine, check the work equipment, the outside of the machine and the undercarriage, and make sure that there are no oil or coolant leakages. If any anomaly is observed, provide for the necessary repairs.
Page 178: Rubber Tracks (Machines With Rubber Tracks)
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS RUBBER TRACKS (MACHINES WITH RUBBER TRACKS) Information concerning rubber tracks Rubber tracks have exceptional characteristics that cannot be found in steel tracks. However, if they are used in the same way as steel tracks, the advantages they offer cannot be fully exploited. Operate without subjecting the rubber tracks to excessive stress, trying to adapt to the conditions of the job site and to the work being carried out.
Page 179: Preserving The Rubber Tracks
FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Preserving the rubber tracks To avoid damaging the rubber tracks, keep to the following instructions during work. q Avoid carrying out counter-rotations on concrete surfaces. q Avoid sudden changes of direction that may damage the rubber tracks and wear them out. q Avoid steering when moving on surfaces with considerable differences in height.
Page 180 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS 3. Avoid traveling along the edge of slopes or on rough ground with one track raised (machine inclination exceeding 10°) and with the other track on flat ground. To avoid damaging the rubber tracks, always proceed with both tracks resting on the same horizontal plane.
Page 181 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS Detachment of the rubber track from the track frame 1. When the machine moves over an obstacle, a gap forms between the carrier roller and the rubber track. In these conditions, the rubber track may come off. 2.
Page 182 FUNCTIONING USE OF THE MACHINE AND RELATED CONTROLS q If the machine travels in reverse in these conditions, the rubber track will come off. q If the machine steers in these conditions, the rubber track will come off. WEAM014500 3-94...
Page 183: Transportation
FUNCTIONING TRANSPORTATION TRANSPORTATION When transporting the machine, observe all the laws and regulations in force, paying special attention to safety. TRANSPORT PROCEDURE As a general rule, the machine must be transported on a trailer. Select the trailer based on the weight and size of the machine as described in paragraph "SPECIFICATIONS (5-2)".
Page 184: Loading And Unloading The Machine
FUNCTIONING TRANSPORTATION LOADING AND UNLOADING THE MACHINE WARNING q During loading and unloading operations, make sure that the travel speed increase warning light (1) is off and always travel at low speed. q During loading and unloading operations, let the engine idle, reduce speed and operate the machine slowly.
Page 185 FUNCTIONING TRANSPORTATION Loading the machine REMARK Load and unload the machine on/from the trailer on firm and level ground only, and widen the track gauge. Keep a safety distance from the edge of the road. 1. Engage the trailer brakes and insert the wedges (1) under the wheels to prevent it from moving.
Page 186 FUNCTIONING TRANSPORTATION 4. When loading, set the work equipment at the front and the blade at the back, with the undercarriage and the turret parallel. 5. Before getting on the ramps, make sure that the machine is in line with the ramps and that the centerline of the machine corresponds to the centerline of the trailer.
Page 187 FUNCTIONING TRANSPORTATION 4. Place the safety locking lever (1) in the LOCK position (L). q Canopy specification q Cab specification 5. Lock the cab door and cases with lock, see section "CAPS AND COVERS WITH LOCK (3-31)". RKA32810 REMARK Do not use the hole in the back of the undercarriage to tow or lift the machine.
Page 188 FUNCTIONING TRANSPORTATION 6. Make sure that the travel speed increase warning light is off. REMARK If the warning light is on, press the translation speed selector switch located on the blade control lever grip. The warning light turns off and low travel speed is selected. 7.
Page 189: Lifting The Machine
"SPECIFICATIONS (5-2)". q The lifting procedure is valid for machines with standard specifications. lifting method varies depending accessories and tools that are actually installed. In case of machines with different specifications, contact your Komatsu distributor more detailed information. WEAM014500 3-101...
Page 190 FUNCTIONING TRANSPORTATION When lifting the machine, carry out the operation on flat ground as follows. 1. Start the engine, then swing the turret so that the work e q u i p m e n t i s a b o v e t h e s p r o c k e t s ( 1 ) w i t h t h e undercarriage and the turret parallel to each other.
Page 191 FUNCTIONING TRANSPORTATION 8. Install one shackle in the lifting hole provided in the boom, then pass the metal cable through it. 9. Connect the ropes to the upper lifting bar as indicated in the figure. NOTICE q Always use the three coupling points provided for lifting the machine.
Page 192: Using The Machine In The Cold Season
"CLEANING OF THE COOLING SYSTEM AND CHANGING THE COOLANT (4-66)". 2. Do not mix different brands of antifreeze. 3. If there are doubts about the coolant standard, refer to the Komatsu distributor to have more accurate information. Battery WARNING q The battery produces flammable gas, therefore keep flames and sparks away from it.
Page 193 FUNCTIONING USING THE MACHINE IN THE COLD SEASON When the ambient temperature drops, the capacity of the battery decreases accordingly. If the battery charge is low, the electrolyte may freeze. Keep the battery charge level as high as possible and insulate the battery against excessively low temperatures, in such a way as to be able to start the machine easily when starting work in the morning.
Page 194: Cab Ventilation And Cooling
FUNCTIONING USING THE MACHINE IN THE COLD SEASON CAB VENTILATION AND COOLING The ventilation and heating of the cab serve to reduce the operator’s stress both in summer and in winter; these functions also serve to eliminate condensate from the front windshield, thus ensuring visibility during both work and travel.
Page 195: Precautions To Be Taken Every Day At The End Of Work
FUNCTIONING USING THE MACHINE IN THE COLD SEASON PRECAUTIONS TO BE TAKEN EVERY DAY AT THE END OF WORK PERICOLO Spinning the tracks is dangerous; when performing this operation pay the utmost attention that no one comes close to the machine. q To prevent the mud and water present on the undercarriage from freezing, thus making it impossible to move the machine the following morning, always take the following precautions.
Page 196: Long Periods Of Inactivity
FUNCTIONING LONG PERIODS OF INACTIVITY LONG PERIODS OF INACTIVITY BEFORE A PERIOD OF INACTIVITY NOTICE q To protect the cylinder rods when the machine is not used, position the work equipment as shown in the figure. (This serves to prevent the cylinder rods from rusting). q Before removing the battery, stop the engine, wait at least one minute, and afterwards turn the battery main switch to OFF and extract the specific key.
Page 197: After A Period Of Inactivity
LONG PERIODS OF INACTIVITY AFTER A PERIOD OF INACTIVITY NOTICE If the machine is stored without the monthly antirust treatment, contact the Komatsu distributor for maintenance. Before using the machine after a long period of inactivity, carry out the operations listed below.
Page 198: Allowed Ambient Temperature Range During The Operation And Storage Of The Machine For A Long Time
FUNCTIONING LONG PERIODS OF INACTIVITY ALLOWED AMBIENT TEMPERATURE RANGE DURING THE OPERATION AND STORAGE OF THE MACHINE FOR A LONG TIME The recommended ambient temperature range for operation and long term storage is -20°C to +45°C. If the machine is used in environments with temperature lower than 0°C, see the precautions to adopt on point "USING THE MACHINE IN THE COLD SEASON (3-104)".
Page 199: Troubleshooting
FUNCTIONING TROUBLESHOOTING TROUBLESHOOTING IF FUEL RUNS OUT COMPLETELY Before starting the engine after running out of fuel, refuel and bleed the fuel system. For details on the bleeding procedure, see "Bleeding the fuel circuit (4-54)". OCCURRENCES THAT ARE NOT FAILURES Pay attention to the following occurrences, that are not considered failures: q When the arm is retracted and the work equipment is...
Page 200: Removing The Machine
FUNCTIONING TROUBLESHOOTING REMOVING THE MACHINE WARNING q When removing the machine, use a metal cable suitable for the weight of the machine to be removed. q Do not apply sudden loads to the cable. When the machine is stuck in mud and cannot get out with its own power, or in case of failure, before removing it pass wire cables around the central part of the undercarriage, as shown in the diagram on the right.
Page 201: If The Battery Is Down
FUNCTIONING TROUBLESHOOTING IF THE BATTERY IS DOWN WARNING q It is dangerous to charge the battery when it is installed in the machine. Always remove it before recharge. q Before any operation related to the battery, stop the engine, wait at least one minute, and afterwards turn the battery main switch to OFF and extract the specific key.
Page 202: Removing And Installing The Battery
FUNCTIONING TROUBLESHOOTING Removing and installing the battery NOTICE After securing the battery, make sure that it does not move. If it does move, tighten it adequately again. q Before removing the battery, stop the engine, wait at least one minute, and afterwards turn the battery main switch to OFF and extract the specific key.
Page 203: Starting With Booster Cables
FUNCTIONING TROUBLESHOOTING Starting with booster cables When starting the engine with booster cables, proceed as indicated below. Connecting and disconnecting the booster cables WARNING q When connecting the cables, avoid any contact between the positive cable (+) and the negative cable (–).
Page 204 FUNCTIONING TROUBLESHOOTING Connecting the booster cables Before connecting the batteries via additional cables, make sure that the starter key of both the machines and the battery main switch of the machine to be started are turned to OFF. Connect the additional cables as instructed below and observing the order number in the diagram.
Page 205: Other Troubles
Electrical circuit q ( ): Always contact the Komatsu distributor when you must carry out these operations. q If the anomaly or its cause is not included in the table below, contact your Komatsu distributor for the necessary repair. TROUBLE...
Page 206: Engine
Sprocket excessively worn. Engine q ( ): Always contact the Komatsu distributor when you must carry out these operations. q If the anomaly or its cause is not included in the table below, contact your Komatsu distributor for the necessary repair. TROUBLE...
Page 207 FUNCTIONING TROUBLESHOOTING TROUBLE CAUSE SOLUTION q No fuel. q Restore level. See "Checks to be carried out before starting the engine". q Air in fuel system. q Repair point where air is sucked in. See "Every 500 hours". q Water in fuel system. q Drain water from fuel system.
Page 208 FUNCTIONING TROUBLESHOOTING WEAM014500 3-120...
Page 209 MAINTENANCE 1T:<n+> WARNING Before reading this section, make sure you have read and understood the section on safety. WEAM014500...
Page 210: Guide To Maintenance
Check the hour meter every day to verify if it is necessary to carry out any maintenance operation. Komatsu genuine spare parts Use original Komatsu parts specified in the Spare Parts catalogue. To ensure safe assembly and operation of the machine, we recommend the use of original Komatsu spare parts.
Page 211 Control of oils and worn filters When changing oils or filters, check if metal particles are present. If there are large quantities of metal particles, contact your Komatsu distributor. Fuel filter If the machine is provided with a fuel filter in the filler neck, do not remove it while refuelling.
Page 212 MAINTENANCE GUIDE TO MAINTENANCE Bleeding the hydraulic system After repairing or replacing the hydraulic equipment or after removing the hydraulic piping, it is necessary to bleed the air from the circuit. (See "BLEEDING THE HYDRAULIC SYSTEM (4-45)"). Hydraulic hose assembly q Keep naked flames away from these fluids and avoid smoking.
Page 213: Maintenance Notes
Use only Komatsu genuine spare parts. q Do not mix different types of oil. q Unless specified otherwise, the oils and the coolant used by Komatsu to fill the tanks before the delivery of the machine are the following:...
Page 214: Fuel
2 years or 2000 hours. As a general rule, we do not recommend the use of refrigerants different than Supercoolant Komatsu (AF- NAC). If another coolant is used, you may experience problems such as corrosion of the engine and the aluminium components of the cooling system.
Page 215: Grease
MAINTENANCE GUIDE TO MAINTENANCE Grease q Grease is used to prevent seizing and noise related to the joints. q These construction equipment are used in heavy working conditions. Always use the recommended grease and adhere to the replacement intervals as well as the ambient temperatures recommended in this manual. q The greased parts not covered by the maintenance section must be lubricated during servicing, therefore they need to be lubricated.
Page 216: Kowa (Komatsu Oil Wear Analysis)
Many years of experience and the availability of countless data and information allow Komatsu to accurately determine the conditions of the machine. This also allows us to locate troubles and suggest the most suitable and fast repair solutions.
Page 217: Storing Oil And Fuel
External electromagnetic interference may cause a malfunction of the controller of the control system; before installing a radio receiver or any other wireless tools, contact your Komatsu distributor. q Do not connect any optional device to the fuses, ignition switch, battery, relays, etc.; for the installation of any optional equipment, contact your Komatsu distributor.
Page 218: Notes On The Maintenance Of The Hydraulic System
MAINTENANCE GUIDE TO MAINTENANCE NOTES ON THE MAINTENANCE OF THE HYDRAULIC SYSTEM q Be extremely careful when performing maintenance operations on the hydraulic system, since soon after work the oil is very hot. The circuit is pressurized not only during work, but also at the end of work. q The maintenance operations required for the hydraulic system are the following: Q Daily check of the oil level in the tank.
Page 219: Parts Subject To Wear
Thanks to the continued commitment of Komatsu intent on improving the quality of the product, the spare parts code may change, therefore the serial number of the machine should be given to the Komatsu distributor in order to receive the latest version of the component.
Page 220: Fuel, Coolant And Lubricants
MAINTENANCE FUEL, COOLANT AND LUBRICANTS FUEL, COOLANT AND LUBRICANTS Ambient temperature (°C) Fluid Topping up Fluid type recommended by Komatsu Min. Max. – 20 KomatsuEO10W30DH Engine oil pan Engine oil – 15 Komatsu EO15W40DH Komatsu EO30DH Transmission oil Final reduction gears –...
Page 221: Recommended Brands, Quality Recommended For Products Different Than Original Komatsu Oil
Use only low- or ultra low-sulphur content fuel. RECOMMENDED BRANDS, QUALITY RECOMMENDED FOR PRODUCTS DIFFERENT THAN ORIGINAL KOMATSU OIL Ask your Komatsu distributor when using commercially available oil different from the original Komatsu oil or to check the latest specifications WEAM014500...
Page 222: Approved Synthetic Biodegradable Lubricants Type Hees
Our machines can be filled with synthetic biodegradable hydraulic oil type HEES not of plant origin and therefore the use of the oils indicated in the following table is authorized and recommended: Supplier Synthetic biodegradable oil HEES KOMATSU BO 46 G4 (KES 07.872) AGIP —...
Page 223: Tightening Torques
If it is necessary to replace a screw or a nut, always use Komatsu original spare parts having the same size of the part to be replaced. q Nm (Newton metre): 1 Nm = 0.102 kgm...
Page 224: Standard Tightening Torques For Flexible Hoses (Orfs)
If not specified otherwise, tighten the nuts of the hoses applying the torque specified in the table. If it is necessary to replace a hose, always use Komatsu original spare parts having the same size of the part to be replaced.
Page 225: Lubrication
LUBRICATION DIAGRAM NOTICE q For details on how to lubricate specific parts, see "LUBRICATION (4-49)". q The type of lubricant to be used is indicated in the lubricant table (see "4 FUEL, COOLANT AND LUBRICANTS"). PC22MR-3 2000h 1000h 500h 100h...
Page 226: Ball-Bearing Ring Greasing Points
MAINTENANCE LUBRICATION BALL-BEARING RING GREASING POINTS Grease WEAM014500 4-18...
Page 227: Periodical Change Of Safety-Related Components
MAINTENANCE PERIODICAL CHANGE OF SAFETY-RELATED COMPONENTS PERIODICAL CHANGE OF SAFETY-RELATED COMPONENTS To ensure safety at any moment while driving and using the machine, the operator must carry out all the routine maintenance operations prescribed. Furthermore, the operator must periodically change the components indicated in the table in the following page, which are especially related to safety and fire-prevention rules.
Page 228: Safety-Related Parts
MAINTENANCE PERIODICAL CHANGE OF SAFETY-RELATED COMPONENTS SAFETY-RELATED PARTS Safety-related components that periodically need changing Q.ty Change interval Fuel pipe (fuel tank - prefilter) Fuel pipe (prefilter - fuel pump) Fuel pipe (fuel pump - fuel filter) Fuel pipe (fuel filter - injection pump) Fuel pipe (fuel filter –...
Page 229: Maintenance Plan
MAINTENANCE MAINTENANCE PLAN MAINTENANCE PLAN If the machine is equipped with hydraulic breaker, the maintenance schedule for some components will be different. For further details, see "MAINTENANCE INTERVALS IN CASE OF USE OF THE HYDRAULIC BREAKER (4-23)". MAINTENANCE PLAN WHEN REQUIRED CHECKING, CLEANING OR CHANGING THE AIR FILTER CARTRIDGE ..................
Page 230: Maintenance Plan
MAINTENANCE MAINTENANCE PLAN MAINTENANCE EVERY 1000 HOURS OF OPERATION CHANGING THE HYDRAULIC OIL FILTER............................. 4-59 CHANGING THE OIL IN THE FINAL REDUCTION GEARS......................4-60 CHECKING AND ADJUSTING THE ENGINE VALVE CLEARANCE ....................4-61 MAINTENANCE EVERY 1500 HOURS OF OPERATION FUEL INJECTION SYSTEM CHECK AND CLEANING ........................4-62 ENGINE CASING BREATHER PIPE CHECK ..........................
Page 231: Maintenance Intervals In Case Of Use Of The Hydraulic Breaker
MAINTENANCE MAINTENANCE PLAN MAINTENANCE INTERVALS IN CASE OF USE OF THE HYDRAULIC BREAKER The hydraulic oil used in the machines provided with demolition hammer deteriorates more quickly than the oil used in normal digging machines, therefore it is advisable to respect the following maintenance plan. CHANGING THE HYDRAULIC OIL FILTER In new machines, change the filter after the first 100–150 hours of operation and for the successive changes keep to the...
Page 232: Maintenance Procedures
MAINTENANCE MAINTENANCE PROCEDURES MAINTENANCE PROCEDURES WHEN REQUIRED CHECKING, CLEANING OR CHANGING THE AIR FILTER CARTRIDGE WARNING q Remove the air filter only after stopping the engine and do not start the engine if the air filter is open. q When compressed air is used to clean the filter, dust may get into the eyes. Wear safety goggles and a dust mask during the cleaning operations.
Page 233 MAINTENANCE MAINTENANCE PROCEDURES 5. Slightly strike the filtering element (4) on the palm of your hand, in such a way as to remove the dust, and blow compressed air on the inner surface, keeping the air jet at a distance of approximately 15 cm and the pressure below 4-5 bars.
Page 234: Checking And Cleaning The Cab Air Filter
To carry out this maintenance operation it is necessary to tilt the cab floor. Carefully follow the instructions given in paragraph "TILTING THE CAB FLOOR (3-35)" or have this operation carried out by your Komatsu distributor. q Wear safety goggles during the cleaning operations.
Page 235: Battery Electrolyte Level Check
MAINTENANCE MAINTENANCE PROCEDURES BATTERY ELECTROLYTE LEVEL CHECK WARNING q Carry out this check with the machine parked on level ground. q Check the level only when the engine is stopped and, if necessary, add distilled water only before starting the operations. q Always wear protective goggles and waterproof gloves.
Page 236 Komatsu distributor or the battery manufacturer. When the level of electrolyte cannot be checked on the side of the battery If electrolyte level cannot be checked on the battery side, or if the MAXIMUM level is not indicated, check following the steps below.
Page 237 MAINTENANCE MAINTENANCE PROCEDURES Whenever possible, use an indicator to check electrolyte level If an indicator can be used to check electrolyte level, proceed as indicated below. Battery with charge indicator q A visual gauge indicates the battery charge level in different colours, according to the table positioned beside the gauge: q Green: optimal charge q Gray: the battery needs recharging...
Page 238: Cleaning The Fuel Filter
MAINTENANCE MAINTENANCE PROCEDURES CLEANING THE FUEL FILTER (With water separator) WARNING q Change the filter after work, when the engine has cooled down to 40–45°C. q During these operations some fuel may be spilled; clean the dirty areas immediately, in order to prevent any risk of slipping or fire.
Page 239 MAINTENANCE MAINTENANCE PROCEDURES Bleeding the fuel circuit WARNING The engine may start during the bleeding operations; make sure that there is no one near the machine. 1. After filling the fuel tank, make sure that the valve (1) of the filter is in open position (B).
Page 240: Draining The Fuel Tank
MAINTENANCE MAINTENANCE PROCEDURES DRAINING THE FUEL TANK WARNING q When draining the fuel tank, avoid spilling fuel, since this may cause fires. q If some fuel is accidentally spilled, clean the dirty area immediately, in order to prevent it from getting slippery and to avoid fires.
Page 241: Shoe Fixing Screws Check And Tightening
MAINTENANCE MAINTENANCE PROCEDURES SHOE FIXING SCREWS CHECK AND TIGHTENING (Machines with steel tracks and track pads) WARNING q To compensate for the inevitable settling movements, it is indispensable to check the tightening torque of the screws (1) after the first 30 hours of operation. Carry out another check after the first 100 hours of running-in and, if the screws have become loose again, repeat the check after 200 hours of operation.
Page 242: Checking And Adjusting The Steel Track Tension
MAINTENANCE MAINTENANCE PROCEDURES CHECKING AND ADJUSTING THE STEEL TRACK TENSION The pins and bushings of the undercarriage wear out to different degrees, depending on the work conditions and on the characteristics of the surface on which the machine works. Therefore it is necessary to check the track tension frequently and to adjust it when necessary.
Page 243 «S» of 0 mm and the track is not sufficiently stretched, this means that the pins and bushings are excessively worn. Therefore, it is necessary to exchange or replace the pins and bushings. For any replacement or repair, contact your Komatsu distributor. WEAM014500 4-35...
Page 244 It is extremely dangerous to let the grease out following any procedure different from those illustrated below. q If the track tension cannot be reduced with this operation, contact your Komatsu distributor, who will provide for the necessary repairs.
Page 245: Checking The Rubber Tracks
MAINTENANCE MAINTENANCE PROCEDURES CHECKING THE RUBBER TRACKS Change the rubber tracks when they reach the indicated wear limits. 1. When the height “A” of the rubber claw is less than 5 mm: in this case, in fact, the track may slip and its traction force be reduced.
Page 246: Checking And Adjusting The Rubber Track Tension
If the length of the broken area is less then 30 mm or its depth is less than 10 mm, it is not necessary to repair the track. q For any repair or replacement, contact your Komatsu distributor. CHECKING AND ADJUSTING THE RUBBER TRACK TENSION The rubber tracks wear out to different degrees, depending on the work conditions and on the characteristics of the surface on which the machine is working.
Page 247 Do not loose any component apart from the valve (1). If the track tension does not decrease after this operation, contact your Komatsu distributor. WARNING If the resistance met when injecting the grease is excessive, move the machine forward and backward covering a short distance.
Page 248 It is extremely dangerous to let the grease out following any procedure different from those illustrated below. q If the track tension cannot be reduced with this operation, contact your Komatsu distributor, who will provide for the necessary repairs.
Page 249: Changing The Rubber Tracks
During the change do not remove any component apart from the track. q If the track tension cannot be reduced by means of the procedure described above, contact your Komatsu distributor for the necessary repairs. NOTICE It is possible to switch over from rubber to steel tracks. In any case, it is necessary to remove and adjust the shock absorber of the idler roller.
Page 250 MAINTENANCE MAINTENANCE PROCEDURES 1. Raise the undercarriage using boom and arm. Carry out this operation shifting the control levers very slowly. 2. Gradually loosen the grease valve (1) to let the grease out; do not give the valve more than one turn. 3.
Page 251 MAINTENANCE MAINTENANCE PROCEDURES 2. Install the rubber tracks on the sprocket by fitting the driving blocks. 3. Turn the sprocket (1) as if in reverse, then push the track towards the turret. 4. Using a steel tube (2), position the track and turn the sprocket again.
Page 252: Bucket Teeth Replacement
MAINTENANCE MAINTENANCE PROCEDURES BUCKET TEETH REPLACEMENT WARNING q The unintentional movements working equipment when replacing the bucket teeth are dangerous. Place the working equipment in a stable position, then stop the engine. q There is a risk of scattered metal fragments during teeth replacement operations, therefore, always wear safety goggles, gloves and any other safety devices.
Page 253: Bleeding The Hydraulic System
MAINTENANCE MAINTENANCE PROCEDURES BLEEDING THE HYDRAULIC SYSTEM NOTICE If the pump is activated, and the hydraulic oil casing has not been filled, the pump may result prematurely damaged. Make sure the system is completely purged. Purge the air from the cylinders. NOTICE If the engine runs at maximum rpm or if the cylinders are brought to the end of stroke soon after starting, the air sucked in by the cylinders may damage the piston gaskets.
Page 254: Checking The Detergent Level In The Windsield Washer Reservoir
MAINTENANCE MAINTENANCE PROCEDURES CHECKING THE DETERGENT LEVEL IN THE WINDSIELD WASHER RESERVOIR (Cab specification) The reservoir (1) is positioned inside the radiator compartment and contains detergent for the front windshield; make sure that the reservoir is always filled with detergent. If necessary, add non-flammable detergent of the type used for cars.
Page 255: Lubrication Of Cab Door Hinges
MAINTENANCE MAINTENANCE PROCEDURES LUBRICATION OF CAB DOOR HINGES (Cab specification) Lubricate when the cab door squeaks when it is opened or closed, or when there are oxidation traces around the shoulder washers or their pivots. Lubrication consists in filling the grease nipples placed on the hinge axis with grease.
Page 256: Checks To Be Carried Out Before Starting The Engine
WARNING Dirt, oil and fuel in the engine compartment near hot parts may damage the machine and even cause fires. Check frequently and repair any leakage immediately; if they occur repeatedly, contact your Komatsu distributor. For details on the following items, see "Checks performed before starting the engine (3-47)".
Page 257: Maintenance Every 100 Hours Of Operation
MAINTENANCE MAINTENANCE PROCEDURES MAINTENANCE EVERY 100 HOURS OF OPERATION LUBRICATION NOTICE q Clean the grease nipples before applying the greasing pump. q After lubrication, remove all the contaminated grease that may have spread out of the nipples. q If the machine is used in difficult conditions, carry out this operation more frequently than usual. q As a general rule, it is important to consider that each cylinder is provided with two grease nipples positioned on the couplings and that each pin serving as fulcrum point for a movement is provided with at least one grease nipple.
Page 258 MAINTENANCE MAINTENANCE PROCEDURES (1) Bucket-link connection pins (1 point) (2) Arm–bucket connection pin (1 point) (3) Arm–link connection pin (1 point) (4) Bucket cylinder rod end (1 point) (5) Link connection pin (1 point) (6) Blade cylinder base pin (1 point) (7) Blade cylinder rod end (1 point) (8) Blade base pin (2 points) (9) 1st boom rotation bracket pin (2 points)
Page 259: Maintenance After The First 500 Hours Of Operation
MAINTENANCE MAINTENANCE PROCEDURES MAINTENANCE AFTER THE FIRST 500 HOURS OF OPERATION (Only for machines in which synthetic biodegradable oil HEES is used) The following maintenance operation must be carried out after the first 500 hours of operation, together with the maintenance operations to be carried out every 500 hours.
Page 260: Maintenance Every 500 Hours Of Operation
MAINTENANCE MAINTENANCE PROCEDURES MAINTENANCE EVERY 500 HOURS OF OPERATION CHANGING THE ENGINE OIL AND THE ENGINE OIL FILTER CARTRIDGE WARNING q Change the oil with the machine parked on a level surface and the work equipment resting on the ground. q Soon after the machine has been stopped the engine oil is very hot and may cause burns;...
Page 261: Changing The Fuel Filter Element (With Water Separator)
MAINTENANCE MAINTENANCE PROCEDURES CHANGING THE FUEL FILTER ELEMENT (WITH WATER SEPARATOR) WARNING q Change the filtering element after work, when the engine has cooled down to 40–45°C. q During these operations some fuel may be spilled; clean the dirty areas immediately, in order to prevent any risk of slipping or fire.
Page 262 MAINTENANCE MAINTENANCE PROCEDURES Bleeding the fuel circuit WARNING The engine may start during the bleeding operations; make sure that there is no one near the machine. 1. After filling the fuel tank, make sure that the valve (1) of the filter is in open position (B).
Page 263: Checking The Oil Level In The Final Reduction Gears
MAINTENANCE MAINTENANCE PROCEDURES CHECKING THE OIL LEVEL IN THE FINAL REDUCTION GEARS WARNING q Soon after the machine has been stopped, the engine oil is very hot and may cause burns; let the oil cool down to 40–45° C before carrying out any check. q Loosen the cap slowly to release any residual pressure.
Page 264: Checking And Cleaning The Fins Of The Radiator And Of The Exchanger
MAINTENANCE MAINTENANCE PROCEDURES CHECKING AND CLEANING THE FINS OF THE RADIATOR AND OF THE EXCHANGER WARNING If compressed air, steam or water are directed on a person they can cause injuries. Always wear a face shield, dust mask and safety shoes. 1.
Page 265: Checking And Adjusting The Fan Belt Tension
NOTICE Guards are installed in the area of the engine to protect personnel from moving parts. These guards should only be removed by a Komatsu service engineer unless specific instructions are given in this manual. Adjustment 1. Loosen the adjusting screw (2) and the alternator fastening screws (3).
Page 266: Draining The Hydraulic Oil Tank (Only For Machines In Which Synthetic Biodegradable Oil Type Hees Is Used)
MAINTENANCE MAINTENANCE PROCEDURES DRAINING THE HYDRAULIC OIL TANK (Only for machines in which synthetic biodegradable oil type HEES is used) WARNING q Retract the arm and bucket cylinders completely, rest the bucket teeth on the ground and, after stopping the engine, eliminate the residual pressures from the equipment (by shifting the controls more than once) and from the tank (by slowly loosening the filler cap).
Page 267: Maintenance Every 1000 Hours Of Operation
MAINTENANCE MAINTENANCE PROCEDURES MAINTENANCE EVERY 1000 HOURS OF OPERATION Carry out these operations together with those to be performed every 500 HOURS. CHANGING THE HYDRAULIC OIL FILTER WARNING q Soon after the machine has been stopped, the hydraulic oil is very hot and may cause burns; let it cool down to 40–45°...
Page 268: Changing The Oil In The Final Reduction Gears
MAINTENANCE MAINTENANCE PROCEDURES NOTICE I n m a c h i n e s e q u i p p e d w i t h b r e a k e r h y d r a u l i c o i l deteriorates more rapidly than in machines used for simple digging operations.
Page 269: Checking And Adjusting The Engine Valve Clearance
MAINTENANCE MAINTENANCE PROCEDURES CHECKING AND ADJUSTING THE ENGINE VALVE CLEARANCE Since these checks and adjustments require the use of special tools, have them carried out by qualified personnel supplied by your Komatsu distributor. WEAM014500 4-61...
Page 270: Maintenance Every 1500 Hours Of Operation
To obtain the best engine performance, the fuel injection valves must operate perfectly. Then, it is necessary to carry out the fuel injection valves check and cleaning. Given that special tools are needed for these operations, it is advisable to commission your Komatsu distributor to perform them. ENGINE CASING BREATHER PIPE CHECK To ensure that emissions will be within the limits allowed by the regulations in force during the engine working life, the engine casing breather pipe must operate perfectly.
Page 271: Maintenance Every 2000 Hours Of Operation
To carry out this maintenance operation it is necessary to tilt the cab floor. Carefully follow the instructions given in paragraph "TILTING THE CAB FLOOR (3-35)" or have this operation carried out by your Komatsu distributor. q Retract the arm and bucket cylinders completely, rest the bucket teeth on the ground and, after stopping the engine, eliminate the residual pressures from the equipment (by shifting the controls more than once) and from the tank (by slowly loosening the filler cap).
Page 272 MAINTENANCE MAINTENANCE PROCEDURES 5. Shift the safety lever (1) to the “locked” position (L). RKA32810 6. Open the engine hood and the radiator cover (1). For details, see paragraph "RADIATOR COVER (3-33)" 7. Loosen the screws (2), remove the plate (3) and slowly loosen the filler cap (F) to release the residual pressure from the tank.
Page 273 MAINTENANCE MAINTENANCE PROCEDURES 12. Put back the drain plug (P), the lower flange (7) with the filter (8), checking the soundness of the gasket, and the suction pipe (5) with the clamps (4). 13. Fill with prescribed oil until reaching the level (G). Use only oil of the prescribed type (see "FUEL, COOLANT AND LUBRICANTS (4-12)").
Page 274: Cleaning Of The Cooling System And Changing The Coolant
2 years or 2000 hours. As a general rule, we do not recommend the use of refrigerants different than Supercoolant Komatsu (AF-NAC). If another coolant is used, you may experience problems such as corrosion of the engine and the aluminium components of the cooling system.
Page 275 MAINTENANCE MAINTENANCE PROCEDURES WARNING q Soon after the machine has been stopped the coolant is very hot and under pressure and it may cause serious burns; let the engine cool down until it reaches approximately 40–45°C before changing the coolant. q Slowly loosen the radiator cap, in order to release any residual pressure.
Page 276: Checking The Alternator And The Starter
CHECKING THE ALTERNATOR AND THE STARTER The brush may be worn or the bearing may be without grease. Contact your Komatsu distributor for the necessary inspection or repair. If the engine is started frequently, carry out this check every 1000 hours.
Page 277: Nitrogen Loading Pressure Check In The Accumulator (For The Control Circuit)
Do not make holes in the accumulator, do not weld or use oxyhydrogen flames. q Do not hit or press the accumulator. q The gas must be released when disposing of the accumulator. Refer to your Komatsu distributor to have this operation carried out.
Page 278 MAINTENANCE MAINTENANCE PROCEDURES Accumulator operation check CAUTION Before starting check operations, make sure that no person or other obstacles are in the surrounding area. Check nitrogen loading pressure as follows. 1. Stop the machine on a solid and flat surface. 2.
Page 279 If the tool does not descend or stops at the middle of the course, the accumulator pressure is not enough. Refer to your Komatsu distributor for check operations. 7. When the check is completed, take the safety device lever back to the locking position (L) and turn the start-up key to OFF.
Page 280: Final Disposal Of The Machine
MAINTENANCE FINAL DISPOSAL OF THE MACHINE FINAL DISPOSAL OF THE MACHINE At the end of the working life of the machine, ask Komatsu distributor for the final disposal. WEAM014500 4-72...
Page 281: Specifications
SPECIFICATIONS WEAM014500...
Page 282 SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Unit of PC22MR-3 measurement Operating mass (ISO 6016) 2590 Bucket capacity (ISO 7451) 0.053 Komatsu Engine 3D76E-6 diesel engine Engine power (ISO 14396: 2002) KW (HP)/rpm 15.5(21) / 2500 Total length 3750 Total height 2485 Total width...
Page 283: Operating Characteristics
SPECIFICATIONS OPERATING CHARACTERISTICS OPERATING CHARACTERISTICS Unit of measure PC22MR-3 ment Max. digging outreach 4150 Max. digging depth 2280 Max. digging height 4000 Max. vertical wall digging depth 1860 Max. dumping height 2720 Work equipment min. swing radius 1790 Work equipment min. swing radius (with boom swing) 1450 Max.
Page 284: Lifting Capacities
SPECIFICATIONS LIFTING CAPACITIES LIFTING CAPACITIES LIFTING CAPACITIES (Canopy specification) DANGER q According to the harmonized standard EN474-5 (§ 4.1.7.5), the machine cannot lift weights exceeding 1000 kg, unless it is provided with appropriate equipment. q Carry out lifting operations only with the machine positioned on firm and flat ground. REMARK The load does not exceed 87% of the hydraulic lifting capacity or 75% of the tipping limit.
Page 285 SPECIFICATIONS LIFTING CAPACITIES Standard arm + Raised blade Unit of measurement: (kg) Max. 3.0 m – – – – 2.0 m – – 1.0 m -1.0 m – – Standard arm + lowered blade Unit of measurement: (kg) Max. 3.0 m –...
Page 286 SPECIFICATIONS LIFTING CAPACITIES Standard arm + counterweight + raised blade Unit of measurement: (kg) Max. 3.0 m – – – – 2.0 m – – 1.0 m -1.0 m – – Standard arm + counterweight + lowered blade Unit of measurement: (kg) Max.
Page 287: Lifting Capacities (Cab Specification)
SPECIFICATIONS LIFTING CAPACITIES LIFTING CAPACITIES (Cab specification) DANGER q According to the harmonized standard EN474-5 (§ 4.1.7.5), the machine cannot lift weights exceeding 1000 kg, unless it is provided with appropriate equipment. q Carry out lifting operations only with the machine positioned on firm and flat ground. REMARK The load does not exceed 87% of the hydraulic lifting capacity or 75% of the tipping limit.
Page 288 SPECIFICATIONS LIFTING CAPACITIES Standard arm + Raised blade Unit of measurement: (kg) Max. 3.0 m – – – – 2.0 m – – 1.0 m -1.0 m – – Standard arm + lowered blade Unit of measurement: (kg) Max. 3.0 m –...
Page 289 SPECIFICATIONS LIFTING CAPACITIES Standard arm + counterweight + raised blade Unit of measurement: (kg) Max. 3.0 m – – – – 2.0 m – – 1.0 m -1.0 m – – Standard arm + counterweight + lowered blade Unit of measurement: (kg) Max.
Page 290 SPECIFICATIONS LIFTING CAPACITIES WEAM014500 5-10...
Page 291: Optional Equipment
OPTIONAL EQUIPMENT WARNING Before reading this section, make sure you have read and understood the section on safety. WEAM014500...
Page 292: General Precautions For Safety
When installing attachments or options to the machine, it is necessary to pay attention to safety. Please obey the following precautions strictly when selecting, installing, or using attachments or options. Please consult your local Komatsu distributor for accessories or optional equipment other than those described in this manual.
Page 293: Precautions When Using
When calculating the allowable mass of attachments, the mass of the bucket, see the explanation of lift- ing capacity chart PC22MR-3 ("LIFTING CAPACITIES (5-4)"). For an attachment not intended to bear a load, for example a breaker, it should not exceed the minimum lift capacity of the machine as shown on the related lift capacity charts (see "LIFTING CAPACITIES (5-4)").
Page 294: Specifications
OPTIONAL EQUIPMENT SPECIFICATIONS SPECIFICATIONS Hydraulic specifications q Max. service valve flow (1st equipment) 45 litres/min q Standard service valve working pressure (1st equipment) 24.5 MPa (245 bar) q Optional safety service valve working pressure (1st equipment) — MPa ( — bar) q Standard service valve safety pressure (equipment 1) 27.9 MPa (279 bar) ARM-PIN INFORMATION 123 mm...
Page 295: Equipment Use Guide
Komatsu is not liable for injuries, accidents or damage resulting from the unauthorised use of accessories and optional equipment. COMBINATIONS OF WORK EQUIPMENT...
Page 296 The recommendations are given as a guide only, based on typical conditions. q To dig and load hard or rocky earth, it is advisable to use a long-life reinforced bucket, highly wear-resistant. Characteristics of the equipment (managed exclusively by Komatsu or its authorised distributor) Main dimension...
Page 297: Machine Configuration For The Installation Of Attachments
OPTIONAL EQUIPMENT MACHINE CONFIGURATION FOR THE INSTALLATION OF ATTACHMENTS MACHINE CONFIGURATION FOR THE INSTALLATION OF ATTACHMENTS POSITION OF THE DEVICES Quick couplers Selection valve Optional equipment control pedal Pedal locking device (for the optional equipment control pedal) (1) Quick couplers The quick coupling is used to connect the pipes equipped with quick coupling to the ends of the equipment.
Page 298 OPTIONAL EQUIPMENT MACHINE CONFIGURATION FOR THE INSTALLATION OF ATTACHMENTS (2) Selection valve The selector valve adjusts the flow of hydraulic oil. WARNING If a general equipment is used when the selector valve is not installed, the movements of equipment may not correspond to the commands given by the operator causing serious injury.
Page 299 OPTIONAL EQUIPMENT MACHINE CONFIGURATION FOR THE INSTALLATION OF ATTACHMENTS (4) Pedal locking device (for the optional equipment control pedal) WARNING Always lock the optional equipment control pedal when the use of this control is not required, during travel and when parking the machine. If the control pedal is inadvertently pressed, this may cause serious accidents.
Page 300: Hydraulic Circuit
OPTIONAL EQUIPMENT MACHINE CONFIGURATION FOR THE INSTALLATION OF ATTACHMENTS HYDRAULIC CIRCUIT Installing and connecting the equipment WARNING q The machine must be parked on a level surface, with the equipment resting on the ground. q When the coupling pins are removed or installed, chips may come off; always use gloves, goggles and helmet.
Page 301: Maintenance
OPTIONAL EQUIPMENT MACHINE CONFIGURATION FOR THE INSTALLATION OF ATTACHMENTS Maintenance The hydraulic system does not require any operation and inspection other than those prescribed for the routine maintenance of the machine. Regarding the maintenance operations required for the equipment, see the specific operation manuals.
Page 302: Operating The Equipment
(B). REMARK If it is necessary to adjust the oil flow, have this operation carried out by your Komatsu distributor. Precautions for use q Before using the breaker, make sure that the spool of the selection valve (1) is completely rotated counterclockwise and resting against its retainer, position (a).
Page 303: Use Of Generic Equipment Such As The Crusher
(operator seat side). REMARK If it is necessary to adjust the oil flow, have this operation carried out by your Komatsu distributor. Precautions for use q Before using a crusher or other generic equipment, make sure that the spool of the selection valve (1) is completely rotated clockwise and resting against its retainer, position (a).
Page 304: Precautions To Be Taken When Using Optional Equipment
Choose the type of equipment that is most suitable to the hydraulic excavator on which it must be installed. q Use only optional or special equipment recommended and approved by Komatsu and in compliance with the requirements indicated (see "EQUIPMENT CONFIGURATION (6-5)").
Page 305 OPTIONAL EQUIPMENT PRECAUTIONS TO BE TAKEN WHEN USING OPTIONAL EQUIPMENT 2. It is absolutely necessary to keep the pressure of the excavator on the breaker constant as the bit penetrates the ground. Always accompany the breaker as it penetrates and use the excavator arms to obtain such a pressure as to keep the undercarriage lifted approx.
Page 306: Always Avoid The Following Incorrect Uses
OPTIONAL EQUIPMENT PRECAUTIONS TO BE TAKEN WHEN USING OPTIONAL EQUIPMENT Always avoid the following incorrect uses To ensure long machine life and safe work, the following operations should be avoided. NOTICE During work, do not use the hydraulic breaker with the bucket cylinder at the end of stroke, but always leave a minimum space of 5 cm.
Page 307: Greasing
OPTIONAL EQUIPMENT PRECAUTIONS TO BE TAKEN WHEN USING OPTIONAL EQUIPMENT 5. Levering with the tool after driving it into the material to be broken. 6. Hitting the ground with the breaker bit. 7. Lifting the machine by levering on the breaker bit with the bucket cylinder completely extended.
Page 308 OPTIONAL EQUIPMENT PRECAUTIONS TO BE TAKEN WHEN USING OPTIONAL EQUIPMENT NOTICE If grease is injected with the breaker in the wrong position, t h e b r e a k e r c i r c u i t w i l l r e c e i v e m o r e g r e a s e t h a n necessary.
Page 309: Bucket With Hook
OPTIONAL EQUIPMENT BUCKET WITH HOOK BUCKET WITH HOOK HOOK CONDITION Check that there is no damage to the hook, stopper, or hook mount. If there is any problem, contact your Komatsu distributor. UNAUTHORIZED OPERATIONS Operations with Care q When lifting, reduce the revs of the engine and perform slow movements of the working equipment.
Page 310 OPTIONAL EQUIPMENT BUCKET WITH HOOK WEAM014500 6-20...

Komatsu PC22MR-3 Operation & Maintenance Manual

Foreword

Safety Information

Introduction

Product Identification

Safety

Safety Labels

General Precautions

Safety Machine Operation

Contents

Safety Maintenance Information

Functioning

Machine Illustrations

Instruments and Controls

Cab

Caps and Covers with Lock

Tilting the Cab Floor

Supplementary Power Supply

Fuses

Storage Compartments

Komtrax System

Use of the Machine and Related Controls

Contents

Transportation

Using the Machine in the Cold Season

Long Periods of Inactivity

Troubleshooting

Guide to Maintenance

Parts Subject to Wear

Fuel, Coolant and Lubricants

Contents

Tightening Torques

Lubrication

Periodical Change of Safety-Related Components

Maintenance Plan

Maintenance Procedures

Biodegradable Oil Type HEES Is Used)

Quick Links

Related Manuals for Komatsu PC22MR-3

Summary of Contents for Komatsu PC22MR-3