Hitachi ZAXIS 330LC Manuale di istruzioni

Manual No. : KM-1HH-E

Vol. No. : W1HH-E-01

Workshop Manual

Excavator

PRINTED IN SINGAPORE (PS) 2005.06

330 • 330LC • 350H • 350LCH • 370MTH Excavator Workshop Manual

330 • 330LC

350H • 350LCH

370MTH

Service Manual (Manual No. KM-1HH-E) consists of the following three separate volumes;

Technical Manual (Operational Principle) :Vol.No.TO1HH-E

Technical Manual (Troubleshooting) :Vol.No.TT1HH-E

Workshop Manual :Vol. No.W1HH-E

Zaxis330/350/370-WSM 1/7/05, 16:281

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INTRODUCTION

IN-01

TO THE READER

• This manual is written for an experienced technician

to provide technical information needed to maintain

and repair this machine.

• Be sure to thoroughly read this manual for cor-

rect product information and service procedures.

• If you have any questions or comments, at if you

found any errors regarding the contents of this

manual, please contact using “Service Manual

Revision Request Form” at the end of this man-

ual.

(Note: Do not tear off the form. Copy it for us-

age.):

Publications Marketing & Product Support

Hitachi Construction Machinery Co. Ltd.

TEL: 81-29-832-7173

FAX: 81-29-831-1162

ADDITIONAL REFERENCES

• Please refer to the materials listed below in addition

to this manual.

• The Operator’s Manual

• The Parts Catalog

• Operation Manual of the Engine

• Parts Catalog of the Engine

• Hitachi Training Material

MANUAL COMPOSITION

• This manual consists of three portions: the Techni-

cal Manual (Operational Principle), the Technical

Manual (Troubleshooting) and the Workshop Man-

ual.

• Information included in the Technical Manual

(Operational Principle):

technical information needed for redelivery and

delivery, operation and activation of all devices

and systems.

• Information included in the Technical Manual

(Troubleshooting):

technical information needed for operational per-

formance tests, and troubleshooting procedures.

• Information included in the Workshop Manual:

technical information needed for maintenance

and repair of the machine, tools and devices

needed for maintenance and repair, maintenance

standards, and removal/installation and assem-

ble/disassemble procedures.

PAGE NUMBER

• Each page has a number, located on the center

lower part of the page, and each number contains

the following information:

Example : T 1-3-5

Consecutive Page Number for Each Group

Group Number

Section Number

T: Technical Manual W: Workshop Manual

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INTRODUCTION

IN-02

SAFETY ALERT SYMBOL AND HEADLINE

NOTATIONS

In this manual, the following safety alert symbol and

signal words are used to alert the reader to the

potential for personal injury of machine damage.

This is the safety alert symbol. When you see this

symbol, be alert to the potential for personal injury.

Never fail to follow the safety instructions prescribed

along with the safety alert symbol.

The safety alert symbol is also used to draw attention

to component/part weights.

To avoid injury and damage, be sure to use appropri-

ate lifting techniques and equipment when lifting

heavy parts.

• CAUTION:

Indicated potentially hazardous situation which

could, if not avoided, result in personal injury or

death.

• IMPORTANT:

Indicates a situation which, if not conformed to the

instructions, could result in damage to the machine.

• NOTE:

Indicates supplementary technical information or

know-how.

UNITS USED

• SI Units (International System of Units) are used in

this manual.

MKSA system units and English units are also

indicated in parenthheses just behind SI units.

Example : 24.5 MPa (250 kgf/cm2, 3560 psi)

A table for conversion from SI units to other system

units is shown below for reference purposees.

Quantity To Convert

From Into Multiply By

MPa kgf/cm210.197Pressure

MPa psi 145.0

kW PS 1.360Power

kW HP 1.341

Temperature °C °F °C×1.8+32

km/h mph 0.6214Velocity

min-1 rpm 1.0

Flow rate L/min US gpm 0.2642

mL/rev cc/rev 1.0

Quantity To Convert

From Into Multiply By

mm in 0.03937Length

mm ft 0.003281

L US gal 0.2642

L US qt 1.057

Volume

m3yd31.308

Weight kg lb 2.205

N kgf 0.10197Force

N lbf 0.2248

N⋅m kgf⋅m 1.0197Torque

N⋅m lbf⋅ft 0.7375

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SAFETY

SA-1

RECOGNIZE SAFETY INFORMATION

• This is the SAFETY ALERT SYMBOL.

• When you see this symbol on your machine or in

this manual, be alert to the potential for personal

injury.

• Follow recommended precautions and safe

operating practices.

001-E01A-0688

SA-688

UNDERSTAND SIGNAL WORDS

• On machine safety signs, signal words designating

the degree or level of hazard - DANGER, WARN-

ING, or CAUTION - are used with the safety alert

symbol.

• DANGER indicates an imminently hazardous

situation which, if not avoided, will result in death

or serious injury.

• WARNING indicates a potentially hazardous

situation which, if not avoided, could result in

death or serious injury.

• CAUTION indicates a potentially hazardous

situation which, if not avoided, may result in

minor or moderate injury.

• DANGER or WARNING safety signs are

located near specific hazards. General

precautions are listed on CAUTION safety signs.

• Some safety signs don’t use any of the

designated signal words above after the safety

alert symbol are occasionally used on this

machine.

• CAUTION also calls attention to safety messages in

this manual.

• To avoid confusing machine protection with per-

sonal safety messages, a signal word IMPORTANT

indicates a situation which, if not avoided, could

result in damage to the machine.

• NOTE indicates an additional explana-

tion for an element of information.

002-E01C-1223

SA-1223

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