Galeo PC78MR-6 Handbuch
TEN00074-00
Operation&Maintenance
Manual
PC78MR
-6
HYDRAULIC EXCAVATOR
SERIAL NUMBERS PC78MR-6 1507 and up
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.
Copyright 2005 Komatsu
Printed in U.S.A.
Komatsu America Corp.
April 2005
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FOREWORD
FOREWORD
FOREWORD
This manual provides rules and guidelines which will help you use this machine safely and effectively. The
precautions in this manual must be followed at all times when performing operation and maintenance. Most
accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of
machines. Accidents can be prevented by knowing beforehand conditions that may cause a hazard when
performing operation and maintenance.
WARNING
Operators and maintenance personnel must always do as follows before beginning operation or maintenance.
Always be sure to read and understand this manual thoroughly before performing operation and maintenance.
Read the safety messages given in this manual and the safety labels affixed to the machine thoroughly and be sure that you
understand them fully.
Keep this manual in the storage location for the operation and maintenance manual given below, and have all personnel read it
periodically.
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.
Komatsu delivers machines that comply with all applicable regulations and standards of the country to which it has been shipped.
If this machine has been purchased in another country or purchased from someone in another country, it may lack certain safety
devices and specifications that are necessary for use in your country. If there is any question about whether your product
complies with the applicable standards and regulations of your country, consult Komatsu or your Komatsu distributor before
operating the machine.
Storage location for the Operation and Maintenance Manual:
A magazine box provided on the left side of operator's seat
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FOREWORD FOREWORD
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FOREWORD
FOREWORD
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FOREWORD SAFETY INFORMATION
SAFETY INFORMATION
To enable you to use this machine safely, safety precautions and labels are given in this manual and affixed to the
machine to give explanations of situations involving potential hazards and of the methods of avoiding such
situations.
Signal words
The following signal words are used to inform you that there is a potential hazardous situation that may lead to
personal injury or damage.
In this manual and on machine labels, the following signal words are used to express the potential level of hazard.
Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. This word is used also to alert against unsafe practices that may cause
property damage.
Example of safety message using signal word
WARNING
When standing up from the operator's seat, always place the lock lever in the LOCK position.
If you accidentally touch the control levers when they are not locked, this may cause a serious injury or death.
Other signal words
In addition to the above, the following signal words are used to indicate precautions that should be followed to
protect the machine or to give information that is useful to know.
This word is used for precautions that must be taken to avoid actions which could shorten
the life of the machine.
This word is used for information that is useful to know.
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FOREWORD
SAFETY INFORMATION
Safety labels
Safety labels are affixed to the machine to inform the operator or maintenance worker on the spot when carrying out
operation or maintenance of the machine that may involve hazard.
This machine uses "Safety labels using words" and "Safety labels using pictograms" to indicate safety procedures.
Example of safety label using words
Safety labels using pictogram
Safety pictograms use a picture to express a level of hazardous
condition equivalent to the signal word. These safety pictograms
use pictures in order to let the operator or maintenance worker
understand the level and type of hazardous condition at all times.
Safety pictograms show the type of hazardous condition at the top
or left side, and the method of avoiding the hazardous condition at
the bottom or right side. In addition, the type of hazardous
condition is displayed inside a triangle and the method of avoiding
the hazardous condition is shown inside a circle.
Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance.
Therefore, the safety messages in this manual and on the machine may not include all possible safety precautions.
If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsibility
to take the necessary steps to ensure safety.
In no event should you engage in prohibited uses or actions described in this manual.
The explanations, values, and illustrations in this manual were prepared based on the latest information available
at that time. 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.
The numbers in circles in the illustrations correspond to the numbers in ( ) in the text. (For example: 1-> (1))
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FOREWORD 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 the section "RECOMMENDED APPLICATIONS (PAGE 3-98)" for further details.
DIRECTIONS OF MACHINE
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 is at the rear of the machine.
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FOREWORD
PRODUCT INFORMATION
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
This is on the left side of the swing bracket mount.
The design of the nameplate differs according to the territory.
ENGINE SERIAL NUMBER PLATE AND ITS LOCATION
On the upper side of the engine cylinder head cover.
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FOREWORD PRODUCT INFORMATION
EMISSION CONTROL INFORMATION LABEL AND ITS LOCATION
This is on the side face of the intake air mount bracket.
EPA: Environmental Protection Agency, U.S.A.
SERVICE METER LOCATION
On top of the machine monitor
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