Komatsu PC450LC-8 Operation & Maintenance Manual
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Komatsu PC450LC-8 Operation & Maintenance Manual

Hydraulic excavator
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Operation & Maintenance
Manual
HYDRAULIC EXCAVATOR
SERIAL NUMBERS
ENGINE
This material is proprietary to Komatsu America International Company and is not to be reproduced, used, or
disclosed except in accordance with written authorization from Komatsu America International Company.
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.
March 2016
PC450LC-8 A10001
6D125E-5
CEAM021902
-8
and up
Copyright 2016 Komatsu
Printed in U.S.A
Komatsu America Corp.

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  • Page 1 6D125E-5 ENGINE This material is proprietary to Komatsu America International Company and is not to be reproduced, used, or disclosed except in accordance with written authorization from Komatsu America International Company. 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 California Proposition 65 Warning This machine may contain mercury in two areas: a.) The display monitor contains mercury if it has a mercury label attached. b.) Optional HID bulbs contain mercury (if the machine is so equipped). There is no risk of exposure unless the bulbs are broken. However, the monitor and/or lamps must be reused, recycled or properly disposed of in accordance with Local, State and Federal Laws at the end of their useful lives.
  • Page 3 0INTRODUCTION PC450LC-8 Find manuals at https://best-manuals.com...

  • Page 4: Foreword

    Keep this manual at the storage location for the Operation and Maintenance Manual given below so that all personnel involved in working on the machine can consult it periodically. In case this manual should be lost or damaged, immediately contact Komatsu or your Komatsu distributor to obtain a new copy.

  • Page 5: Safety Information

    Safety precautions are described in SAFETY section 1. KOMATSU AMERICA CORP. cannot predict every circumstance that might involve a potential hazard in operation and maintenance. Therefore the safety message in this manual and on the machine may not include all possible safety precautions.
  • Page 6 Continuing improvements in the design of this machine can lead to changes in detail which may not be reflected in this manual. Consult Komatsu or your Komatsu distributor for the latest available information of your machine or for questions regarding information in this manual.

  • Page 7: Introduction

    INTRODUCTION INTRODUCTION This Komatsu machine is designed to be used mainly for the following work: • Digging work • Leveling work • Ditching work • Loading work • Demolition work See “Recommended Applications” on page 2-168. for further details. Directions Of Machine...

  • Page 8: Visibility From Operator's Seat

    The hatched area (A) shows the area where the view is blocked by part of the machine when mirrors or other aids to visibility are installed as standard. Please be fully aware that there are places that cannot be seen when operating the machine. (If equipped rear view camera) PC450LC-8 Find manuals at https://best-manuals.com...

  • Page 9: 12 M Circumference Visibility

    Please be fully aware that there are places that cannot be seen when operating the machine. (If equipped rear view camera) PC450LC-8 Find manuals at https://best-manuals.com...

  • Page 10: Breaking-In The New Machine

    Breaking-in The New Machine Remark Your Komatsu machine has been thoroughly adjusted and tested before shipment from the factory. However, operating the machine under full load before breaking the machine in can adversely affect the performance and shorten the machine life.

  • Page 11: Product Information

    INTRODUCTION Product Information When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items. Product Identification Number (PIN)/machine Serial No. Plate On the bottom right of the operator's cab. The design of the nameplate differs according to the territory.

  • Page 12: Service Meter Location

    INTRODUCTION Service Meter Location On top of the machine monitor. Your Machine Serial Numbers And Distributor Machine serial No. Engine serial No. Product identification number (PIN) Distributor name Address Service Personnel Phone/Fax 0-10 PC450LC-8...

  • Page 13: Table Of Contents

    Protection Against Falling Or Flying Objects ........1-17 PC450LC-8...
  • Page 14 Personnel ..............1-39 0-12 PC450LC-8...
  • Page 15 Manual Operation ............2-98 PC450LC-8...

  • Page 16: Table Of Contents

    Inversion ..............2-172 0-14 PC450LC-8...
  • Page 17 Carrying Out KOWA (Komatsu Oil Wear Analysis) ........
  • Page 18 Replace Fuel Main Filter Cartridge ..........3-66 0-16 PC450LC-8...
  • Page 19 Specifications ..............5-19 PC450LC-8...
  • Page 20 Hydraulic Breaker ............. 5-23 HANDLING MACHINES EQUIPPED WITH KOMTRAX ....... 5-28 0-18 PC450LC-8...
  • Page 21 Please read and make sure that you fully understand the precautions described in this manual and the safety labels on the machine. Read and follow all safety precautions. Failure to do so may result in serious injury or death. PC450LC-8...
  • Page 22 ★ If equipped. • Your Komatsu Dealer can supply you with new replacement decals if the ones on the machine are damaged or missing. • When replacing damaged or missing decals, be sure they are placed in the proper location.
  • Page 23 Read manual and labels before operation and maintenance. Follow instructions and warnings in manual and in labels on machine. Keep manual in machine cab near operator. Contact Komatsu distributor for replacement manual. Caution before operating (09802-03000) WARNING - To prevent SEVERE INJURY or DEATH, do the following before moving machine or its attachments: •...
  • Page 24 WARNING - In order to prevent an accident resulting in injury or death caused by error-operation, confirm the machine motion and indicated operating pattern, when operating machine. Pay attention to the circumference and operate slowly when confirming the machine motion. PC450LC-8...
  • Page 25 Slowly loosen cap to relieve pressure before removing. Caution with high-temperature coolant (09668-03001) WARNING - Hot water hazard. To prevent hot water from spurting out: • Turn engine off. • Allow water to cool. • Slowly loosen cap to relieve pressure before removing. PC450LC-8...
  • Page 26 • When loosening track shoe, if it does not loosen after turning lubricator ONE TURN, ask Komatsu dealer or distributor to disassemble. 12. Caution for handling cable (09808-03000) WARNING - Improper use of booster cables and battery cables can cause an explosion resulting in serious injury or death.
  • Page 27 17. Prohibited to enter within swing range (09133-23000) DANGER - Keep off swing area. 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. PC450LC-8...
  • Page 28 DANGER/POISON - SHIELD EYES. EXPLOSIVE GASES CAN CAUSE BLINDNESS OR INJURY. • SPARKS • FLAMES • SMOKING SULFURIC ACID CAN CAUSE BLINDNESS OR SEVERE BURNS. FLUSH EYES IMMEDIATELY WITH WATER. GET MEDICAL HELP FAST. KEEP OUT OF REACH OF CHILDREN. DO NOT TIP. KEEP VENT CAPS TIGHT AND LEVEL. PC450LC-8...
  • Page 29 WARNING - This machine has a Straight Travel System (STS). STS is actuated using STS/attachment pedal. When the machine is not being operated set STS pedal in LOCKED position. Read Operator’s Manual for Safety precautions. Improper use of STS/attachment pedal could cause injury or death. PC450LC-8...
  • Page 30 Align the control pattern selector lever to the specified position (Check the detent.) • After changing the control pattern, do not forget to exchange the control pattern card and display the new control pattern card inside the operator’s cab. 25. Control pattern table (20Y-62-A1830) 1-10 PC450LC-8...
  • Page 31 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...

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A10001

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