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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
PC270LL-7L A86001
6D102E-2
CEAM014701
-7L
and up
Copyright 2016 Komatsu
Printed in U.S.A
Komatsu America Corp.
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Summary of Contents for Komatsu PC270LL-7L
- Page 1 6D102E-2 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 Find manuals at https://best-manuals.com...
- Page 3 Find manuals at https://best-manuals.com...
- Page 4 Komatsu warrants to the ultimate purchaser and each subsequent purchaser that the engine is designed, built and equipped so as to conform, at the time of sale by Komatsu, with all U.S. Federal emission regulations applicable at the time of manufacture and that it is free from defects in workmanship or material which would cause it not to meet these regulations within five years or 3,000 hours of operation, whichever occurs first, as measured from the date of delivery of the engine to the ultimate purchaser.
- Page 5 Find manuals at https://best-manuals.com...
- Page 6 If the Extranet Literature Ordering System is not available at the distributor location, then the following Requisition for Technical Service Publications and Service Forms can be used. Form KDC91E is shown on the reverse side of this page. Komatsu America Corp. reserves the right to add a surcharge to all fax orders.
- Page 7 REQUISITION FOR TECHNICAL SERVICE PUBLICATIONS AND SERVICE FORMS COMPLETE FORM DataKom Publications and Training Division AND RETURN TO 440 North Fairway Drive Vernon Hills, IL 60061-8112 U.S.A. Attn: Service Publications Fax No. (847) 970-4186 Tel No. (847) 970-5887 COMPANY NAME PURCHASE ORDER NO.
- Page 8 INTRODUCTION PC270LL-7L Find manuals at https://best-manuals.com...
- Page 9 If this manual has been lost or has become dirty and cannot be read, request a replacement manual immediately from Komatsu or your Komatsu distributor. If you sell the machine, be sure to give this manual to the new owners together with the machine.
- Page 10 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 11 The precautions given in this manual for operating, maintenance, and safety procedures are only those that apply when this product is used for the specified purpose. If the machine is used for a purpose that is not listed in this manual, Komatsu cannot bear any responsibility for safety.
- Page 12 INTRODUCTION PRODUCT INFORMATION When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items. MACHINE SERIAL NUMBER PLATE AND ITS LOCATION On the bottom right of the operator's cab ENGINE SERIAL NUMBER PLATE AND ITS LOCATION On the top of the No.1 cylinder head cover (The EPA auxiliary nameplate is on the top of the No.
- Page 13 INTRODUCTION SERVICE METER LOCATION On top of the machine monitor. YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR Machine serial No. Engine serial No. Distributor name Address Service Personal Phone/Fax PC270LL-7L...
- Page 14 FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION . . . 1-18 PROTECTION AGAINST FALLING OR FLYING OBJECTS ......1-19 PC270LL-7L...
- Page 15 DO NOT DISASSEMBLE RECOIL SPRINGS ........1-40 PC270LL-7L...
- Page 16 FUEL CONTROL DIAL ........... . . 2-32 PC270LL-7L...
- Page 17 WALK-AROUND CHECKS ..........2-70 0-10 PC270LL-7L...
- Page 18 BACKHOE WORK ............2-113 PC270LL-7L...
- Page 19 KOMATSU GENUINE REPLACEMENT PARTS ........
- Page 20 KOMATSU GENUINE LUBRICANTS ........
- Page 21 WORKING RANGE ............4-4 0-14 PC270LL-7L...
- Page 22 LIFTING CAPACITY- ROAD BUILDER ........4-6 OPTIONS, ATTACHMENTS PC270LL-7L 0-15...
- Page 23 INTRODUCTION MEMORANDUM 0-16 PC270LL-7L...
- Page 24 Please read and make sure that you fully understand precautions described in this manual and the safety labels on the machine. When operating or servicing the machine, always follow these precautions strictly. This safety section also contains precautions for optional equipment and attachments. PC270LL-7L...
- Page 25 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. POSITION FOR ATTACHING SAFETY LABELS...
- Page 26 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 a replacement manual. Precautions for before operation........09802-03000 To prevent SEVERE INJURY or DEATH, do the following before moving machine or its attachments: ●...
- Page 27 Warnings when stowing front window.......09803-03000 When raising window, lock it in place with lock pins on both sides. Falling window can cause injury. PC270LL-7L...
- Page 28 Turning lubricator further could cause lubricator and grease to fly off and hurt you. See manual for adjustment instructions. ● When loosening track shoe, if it does not loosen after turning lubricator ONE TURN, ask Komatsu dealer or distributor to disassemble. PC270LL-7L...
- Page 29 12. Stop rotation when performing testing and adjusting..09667-03001 While engine is running: 1. Do not open cover. 2. Keep away from fan and fan-belt. 13. Explanation of methods for emergency escape....207-00-A8250 See page 1-12, Item 7 14. Roll-over precautions............09805-23000 KEEP AWAY FROM EDGE PC270LL-7L...
- Page 30 18. Precautions for right side window........20U-98-21910 To prevent SEVERE INJURY or DEATH, follow instructions below: ● To avoid contact with boom, DO NOT lean outside right side window. ● If right side window is broken or becomes dislodged, have it repaired immediately. PC270LL-7L...
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