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Operation & Maintenance
Manual
PC240LC
HYDRAULIC EXCAVATOR
SERIAL NUMBERS
ENGINE
This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in
accordance with written authorization from Komatsu America Corp.
It is our policy to improve our products whenever it is possible and practical to do so. We reserve the right to make
changes or improvements at any time without incurring any obligation to install such changes on products sold
previously.
Due to this continuous program of research and development, revisions may be made to this publication. It is
recommended that customers contact their distributor for information on the latest revision.
June 2017
PC240LC-10 A20001
6D107E-2
CEAM025104
-10
and up
Copyright 2017 Komatsu
Printed in U.S.A.
Komatsu America Corp.
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Summary of Contents for Komatsu PC240LC-10
- Page 1 6D107E-2 ENGINE This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in accordance with written authorization from Komatsu America Corp. It is our policy to improve our products whenever it is possible and practical to do so. We reserve the right to make changes or improvements at any time without incurring any obligation to install such changes on products sold previously.
- Page 2 Find manuals at https://best-manuals.com...
- Page 3 If Any Abnormality Occurs During Operation..............3-11 Warning Lamps.........................3-12 Action Level Display...................... 3-13 Warning Lamp Table...................... 3-14 Occurred Error List Display....................3-16 Warning Lamp Details ....................3-17 Pilot Display..........................3-23 Pilot Lamp Details......................3-23 ECO Guidance.......................3-27 Gauge and Meter Display......................3-28 PC240LC-10 Find manuals at https://best-manuals.com...
- Page 4 Open and Close Covers with Locks..................3-110 Lock and Unlock Engine Hood....................3-110 Lock and Unlock the Cab Door....................3-111 Battery Disconnect Switch.........................3-112 System Operating Lamp........................3-113 Komatsu Diesel Particulate Filter (KDPF)..................3-114 Manual Stationary Regeneration Procedure................3-117 PC240LC-10 Find manuals at https://best-manuals.com...
- Page 5 KDPF Regeneration Disable Procedure................. 3-119 Disable Regeneration When Not Being Performed............. 3-120 Stopping Regeneration When Being Performed............3-121 Canceling KDPF Regeneration Disable................. 3-122 Komatsu Closed Crankcase Ventilation (KCCV)................3-123 KOMTRAX............................3-124 Daily Checks and Preparations Before Starting Engine..............3-126 Walk-Around Checks......................3-126 Drain Water and Sediment from Fuel Tank................3-127 Drain Water and Sediment in Water Separator..............
- Page 6 Bleeding Air From Hydraulic System..................4-45 Bleeding Air from Fuel Circuit....................4-47 Maintenance for First 500 Hours......................4-49 Maintenance Every 100 Hours......................4-50 Lubrication Every 100 Hours....................4-50 Maintenance Every 250 Hours......................4-51 Battery Electrolyte Level Check....................4-51 PC240LC-10 Find manuals at https://best-manuals.com...
- Page 7 Maintenance Every 4500 Hours......................4-83 Maintenance Every 5000 Hours......................4-84 Hydraulic Tank Oil Change....................... 4-84 Maintenance Every 8000 Hours......................4-86 SPECIFICATIONS..................5-1 Specifications: PC240LC-10......................... 5-2 OPTIONS, ATTACHMENTS................6-1 General Attachment Safety Precautions....................6-2 Machine Options........................... 6-3 Straight Travel Pedal........................6-3 Machine Control Pattern......................6-3...
- Page 8 CONTENTS Attachment Installation....................6-18 Hydraulic Breaker......................6-20 General Attachments..................... 6-23 Prohibited Usage......................6-24 Rubber Pad Shoe and Road Liner.................6-27 Index...........................8-1 PC240LC-10 Find manuals at https://best-manuals.com...
- Page 9 INTRODUCTION PC240LC-10 Find manuals at https://best-manuals.com...
- Page 10 Komatsu cannot predict every circumstance that might involve a potential hazard when the machine is used. Therefore, the safety messages in this manual and on the machine may not include all possible safety precautions.
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Page 11: Safety Alert Symbol And Signal Words
The following signal words alert you to information that must be followed to avoid damage to the machine. NOTICE This precaution is given where the machine may be damaged or the service life reduced if the precaution is not followed. REMARK This word is used for information that is useful to know. PC240LC-10... - Page 12 BASIC MACHINE INTRODUCTION INTRODUCTION BASIC MACHINE INTRODUCTION This Komatsu machine is designed mainly for the following types of work: • Digging • Leveling • Ditching • Loading • Demolition Directions of Machine In this manual 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 is at the rear of the machine.
- Page 13 Operate the machine, fully aware that the machine has a portion that an operator cannot see. Structure to Protect the Operator This machine is equipped with a structure to protect the operator (Roll-Over Protective Structure (ROPS)) conforming to ISO12117-2. PC240LC-10...
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Page 14: Product Information
PRODUCT INFORMATION INTRODUCTION PRODUCT INFORMATION When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items: Product Identification Number, Machine Serial Number, EPA Regulations and Engine Number, and requested information from your service meter. Product Identification Number (Pin) / Machine Serial No. Plate On the bottom right of the operator's cab. - Page 15 Your Machine Serial Numbers and Distributor Machine serial No. Engine serial No. Product Identification Number (PIN) Distributor name Address Phone/Fax Service Personnel Engine Acronyms Acronym Stands For KDPF Komatsu Diesel Particulate Filter (KDPF) KCCV Komatsu Closed Crankcase Ventilator (KCCV) Variable Geometry Turbocharger PC240LC-10...
- Page 17 SAFETY WARNING Please read and make sure that you fully understand the precautions described in this manual and the safety labels on the machine. When operating or servicing the machine, always follow these precautions strictly. PC240LC-10...
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Page 18: 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 your Komatsu distributor. -
Page 19: Location Of Safety Labels
• Rotate cab for full view of travel path if it can done safely. • Use spotter if view is obstructed. Follow above even if machine is equipped with travel alarm and mirrors. 09802-03000 PC240LC-10... - Page 20 50 kV to 200 kV 6.1 m (20 ft) 200 kV to 350 kV 350 kV to 500 kV 7.7 m (25 ft) 500 kV to 750 kV 10.7 m (35 ft) 750 kV to 1,000 kV 13.8 m (45 ft) 09801-03002 PC240LC-10...
- Page 21 SAFETY SAFETY LABELS 5. Warning for operating pattern. (09822-03000) 6. Warning when opening or closing front window. (09839-03000) PC240LC-10...
- Page 22 SAFETY LABELS SAFETY 7. Warning when stowing front window. (09803-03000) 8. Warning for high-temperature hydraulic oil. (09653-03001) 9. Warning with high-temperature coolant. (09668-03001) 10. Warning for handling accumulator and gas spring (if equipped). (09659-53000) PC240LC-10...
- Page 23 12. Warning for handling cables. (09808-03001) WARNING 13. Caution while engine is running. (09667-03001) 14. Emergency escape. (09844-00050). This is an emergency exit when the cab door will not open. In emergency, smash the window pane with an equipped hammer and get through there. PC240LC-10...
- Page 24 16. Warning when swinging or traveling in reverse. (22B-00-21290) 17. Keep off swing area. (09133-23000) 18. Beware of work equipment. (09134-A1681) Sign indicates a hazard of being hit by the working device of the machine. Keep away from machine during operation. 09134-A16381 PC240LC-10...
- Page 25 21. Caution at blast site. (09845-00480) 22. Warning for high-pressure fuel. (6754-71-1991) 23. Caution for high-temperature (09817-A0753). Sign indicates a burn hazard from touching heated parts, such as engine, motor, or muffler during or right after operation. Never touch when hot. PC240LC-10...
- Page 26 SAFETY LABELS SAFETY 24. Warning to not use ether. (6732-81-4630) 25. Warning for changing operating patterns. (22M-98-11181) 26. Warning for operating pattern. (21K-00-71270) 2-10 PC240LC-10...
- Page 27 Any modification is prohibite d. - ROPS may provide less protection if it has been s t ructurally damaged o r involved in roll-over. Consult Komatsu Distribut o r in that case. - Always wear seat belt when movin g.
- Page 28 SAFETY LABELS SAFETY 31. Warning for straight travel system (STS) (Option) (20Y-62-A2760) 2-12 PC240LC-10...
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Page 29: General Precautions Common To Operation And Maintenance
If you have long hair there is a hazard it may get caught up in the machine. Tie loose hair up and be cautious around all equipment and moving parts. • Check that all protective equipment functions and fits properly before using it. PC240LC-10 2-13... -
Page 30: Fire And Explosion Prevention
Do not operate the machine until the problem has been corrected. FIRE AND EXPLOSION PREVENTION Be aware of the necessary actions to take in event of a fire, and know the precaution to prevent fires. 2-14 PC240LC-10... - Page 31 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...