Komatsu PC800-8 LOADING SHOVEL Handbuch

PC800

-8

PC800LC

-8

SERIAL NUMBER

PC800-8 - 50001

and up

PC800LC-8 - 50001

and up

HYDRAULIC EXCAVATOR

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. This manual should be kept inside the cab for

reference and periodically reviewed by all personel who

will come into contact with the machine.

Operation &

Maintenance Manual

UEAM005400

WARNING

FOREWORD

FOREWORD FOREWORD

1-2

FOREWORD 1

This manual provides rules and guidelines which will help you use this machine safely and effectively. The pre-

cautions 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. Acci-

dents can be prevented by knowing beforehand conditions that may cause a hazard when performing operation

and maintenance.

WARNING

Before beginning operation or maintenance, operators and maintenance personnel must always observe

the following points.

Read this manual thoroughly and understand its contents fully.

Read the safety messages and safety labels given in this manual carefully so that they should be under-

stood fully.

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.

When you sell the machine, make sure that this manual should be provided to the new owner together

with the machine.

In this manual, measurements are expressed in international standard units (SI). For the reference pur-

pose, weight units used in the past are also displayed in ( ).

Storage location for the Operation and Maintenance Manual:

magazine box on the left side of the operator's seat.

FOREWORD SAFETY INFORMATION

1-3

SAFETY INFORMATION 1

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 situa-

tions.

Signal words

The following signal words are used to inform you that there is a potential hazardous situation that may lead to per-

sonal injury or damage.

In this manual and on machine labels, the following signal words are used to express the potential level of hazard.

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 pro-

tect the machine or to give information that is useful to know.

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.

NOTICE This word is used for precautions that must be taken to avoid actions which could shorten

the life of the machine.

REMARKS This word is used for information that is useful to know.

DANGER

WARNING

CAUTION

SAFETY INFORMATION FOREWORD

1-4

qSafety 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 hazard-

ous condition equivalent to the signal word. These safety pic-

tograms use pictures in order to let the operator or

maintenance worker understand the level and type of hazard-

ous 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 con-

dition at the bottom or right side. In addition, the type of haz-

ardous 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 precau-

tions.

If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsi-

bility 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))

Part No.

FOREWORD SAFETY INFORMATION

1-5

Noise emission levels 1

Two labels indicating the machine noise level are affixed on the

machine.

qSound pressure level at the operator’s station, measured

according to ISO6396 (Dynamic test method, simulated

working cycle).

qSound power level emitted by the machine, measured

according to ISO 6395 (Dynamic test method, simulated

working cycle). This is the guaranteed value as specified

in European directive 2000/14/EC.

108

SAFETY INFORMATION FOREWORD

1-6

Vibration levels 1

When used for its intended purpose, levels of vibration for the

earth-moving machine transmitted from the operator’s seat are

lower than or equal to the tested vibrations for the relative

machinery class in compliance with ISO 7096.

The actual acceleration value for the hands and arms is less

than or equal to 2.5 m/s². The actual acceleration value for the

body is less than or equal to 0.5 m/s².

These values were determined using a representative machine

and measured during the typical operating condition indicated

below according to the measurement procedures that are

defined in the standards ISO 2631/1 and ISO 5349.

Operating condition:

Excavating (Digging-loading-rotating-unloading-rotating)

Guide to Reduce Vibration Levels on Machine 1

The following guides can help an operator of this machine to

reduce the whole body vibration levels:

1. Use the correct equipment and attachments.

2. Maintain the machine according to this manual

qTension of crawler (for crawler machines)

qBrake and steering systems

qControls, hydraulic system and linkages

3. Keep the terrain where the machine is working and travel-

ing in good condition

qRemove any large rocks or obstacles

qFill any ditches and holes

qSite manager should provide machine operators with

machine and schedule time to maintain terrain condi-

tions

4. Use a seat that meets ISO 7096 and keep the seat main-

tained and adjusted

qAdjust the seat and suspension for the weight and size

of the operator

qWear seat belt

qInspect and maintain the seat suspension and adjust-

ment mechanisms

5. Steer, brake, accelerate, and move the attachment levers

and pedals slowly so that the machine moves smoothly

FOREWORD SAFETY INFORMATION

1-7

6. Adjust the machine speed and travel path to minimize the

vibration level

qWhen pushing with bucket or blade, avoid sudden

loading; load gradually

qDrive around obstacles and rough terrain conditions

qSlow down when it is necessary to go over rough ter-

rain

qMake the curve radius of traveling path as large as

possible

qTravel at low speed when traveling around sharp

curves

7. Minimize vibrations for long work cycle or long distance

traveling

qReduce speed to prevent bounce

qTransport machines long distances between worksites

8. The following guidelines can be effective to minimize risks

of low back pain

qOperate the machine only when you are in good

health.

qProvide breaks to reduce long periods of sitting in the

same posture

qDo not jump down from the cab or machine

qDo not repeatedly handle and lift loads

SAFETY INFORMATION FOREWORD

1-8

BREAKING-IN THE NEW MACHINE 1

NOTICE

Your Komatsu machine has been thoroughly adjusted and tested before shipment from the factory. How-

ever, operating the machine under full load before breaking the machine in can adversely affect the perfor-

mance and shorten the machine life.

Be sure to break in the machine for the initial 100 hours (as indicated on the service meter).

Make sure that you fully understand the content of this manual, and pay careful attention to the following points

when breaking in the machine.

qRun the engine at idle for 15 seconds after starting it. During this time, do not operate the control levers or fuel

control dial.

qIdle the engine for 5 minutes after starting it up.

qAvoid operation with heavy loads or at high speeds.

qImmediately after starting the engine, avoid sudden starts, sudden acceleration, unnecessary sudden stops,

and sudden changes in direction.

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