Case WX95 Manuale utente
F24062
WX95
WX125
IMPORTANT:
Data contained in this manual was current at the time of publication. As the Manufacturer improves constantly
his products, some information may result as not updated. If variances are observed, contact your Dealer and
After-Sales Service.
CNH FRANCE S.A. - PRINT 9-91370 EN
December 2004
SERVICE MANUAL
EXCAVATOR
INTRODUCTION
VOLUME
- Service Manual - “Excavator”
MACHINE TYPE
WX95-WX125
PRINTNUMBER
9-91370
TO READER
• This manual has been printed for a skilful engi-
neer to supply necessary technical information
to carry out service operations on this machine.
- Read carefully this manual to collect correct
information relevant to repair procedures.
- For any question or remark, or in case of any
error relevant the contents of this manual,
please contact :
CNH FRANCE
Rue des Meuniers
60330 LE PLESSIS BELLEVILLE
FRANCE
FURTHER REFERENCE
• Beyond this service manual, also refer to documents
hereunder listed:
- Operator’s manual
- Parts Catalogue
COMPOSITION OF COMPLETE
HANDBOOK FOR INSTRUCTIONS
AND REPAIRS
• The complete service manual consists of one vol-
ume:
WX95 - WX125
Service Manual “Excavator”
• The Service Manual for “Excavator” contains the
necessary technical information to carry out service
and repair on machine , necessary tools to carry out
those operations and information on service stand-
ard, on procedures for connection, disconnection,
disassembly and assembly of parts.
• ThecompleteServiceManualrelevantto the excavator
models WX95, WX125 consists of following volume,
which can be identified through relevant print out no.
as stated hereunder:
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INTRODUCTION
AVOIDACCIDENTS
The majority of accidents and injuries which occur in plants, in farms and at
home or on roads, are caused by the non-observance of some simple and
fundamental rules of precaution and safety. For this reason in the MAJORITY
OF CASES THEY CAN BE AVOIDED: it is sufficient to foresee possible
causes and to act according with the necessary precaution and care.
With any type of machine, as much as good planned or built, it is impossible
to absolutely avoid risks of accidents without involving negatively some
essential features for a reasonable access and an efficient operation.
Read carefully the indication and cautions of this manual contained in the
SECTION “SAFETY PRECAUTIONS”.
A careful and cautious operator is the best warranty against accidents.
The careful observation of a single and elementary safety precautions would
be enough to avoid many serious accidents. This precaution is:
Never attempt any cleaning, lubrication or maintenance operation when
machine is moving.
YYYS WARNINGYYY
Before carrying out any maintenance operation, adjustment and or repair
on machines equipped with attachments, controlled hydraulically or
mechanically, make sure that the attachment is lowered and safely set on
the ground. If in oder to get access to a machine part it is necessary to
hold the attachment lifted, this should duly be supported by means that
are not use to control the machine.
COPYRIGHT CNH FRANCE
Rue des Meuniers, 60330 LE PLESSIS BELLEVILLE FRANCE
All rights reserved. Reproduction of text or illustrations, in whole or in part, is strictly
prohibited
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WX95
WX125
SECTION 1 MAIN OPERATING RULES
INDEX
Sections index ................................................................................................................... 1-1
Introduction ....................................................................................................................... 1-3
Foreword ...................................................................................................................................................... 1-3
Manual handling ............................................................................................................................................ 1-3
Symbols and indications ............................................................................................................................... 1-4
Features of the manual ..................................................................................................... 1-5
Manual composition ...................................................................................................................................... 1-5
Brief information for manual consultation ...................................................................................................... 1-7
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1-1
SECTIONS INDEX
SECTION 1 - MAIN OPERATING RULES
Sections index ................................................................................................................ 1-1
Introduction .................................................................................................................... 1-3
Features of the manual ................................................................................................... 1-5
SECTION 2 - SAFETY PRECAUTIONS
Safety precautions ......................................................................................................... 2-1
Safety labels ................................................................................................................. 2-35
SECTION 3 - FEATURES AND DATA
Foreword ........................................................................................................................ 3-1
Identification data ........................................................................................................... 3-2
Noise levels (2000/14/EC) .............................................................................................. 3-3
Summary plate for maintenance operations .................................................................... 3-5
Wheeled excavator main components ............................................................................ 3-6
Filling chart WX95 ........................................................................................................3-24
Filling chart WX125 ......................................................................................................3-25
SECTION 4 - SUPERSTRUCTURE
Superstructure ................................................................................................................ 4-1
Main frame and counterweight ........................................................................................ 4-5
Power unit ...................................................................................................................... 4-9
Diesel engine ................................................................................................................ 4-10
Radiator ........................................................................................................................4-12
Hydraulic pumps ........................................................................................................... 4-14
Air cleaner .................................................................................................................... 4-60
Exhaust gas silencer .....................................................................................................4-61
Hydraulic oil tank .......................................................................................................... 4-63
Fuel tank ....................................................................................................................... 4-65
Fuel transfer pump ....................................................................................................... 4-66
Hoods and covers .........................................................................................................4-69
Cab .............................................................................................................................. 4-75
Swinging assy .............................................................................................................. 4-87
Main control valve .........................................................................................................4-99
Slew device ................................................................................................................ 4-121
Control lever ............................................................................................................... 4-157
Control pedal .............................................................................................................. 4-162
Steering unit ............................................................................................................... 4-164
Swivel joint .................................................................................................................. 4-187
Brake pedal valve ........................................................................................................ 4-190
Accumulators .............................................................................................................. 4-204
Pressure switches ...................................................................................................... 4-207
Solenoid valves ........................................................................................................... 4-211
SECTION 5 - UNDERCARRIAGE
Slewing bearing .............................................................................................................. 5-3
Lower frame ................................................................................................................... 5-6
Travel assy ..................................................................................................................... 5-7
Wheels and tyres ....................................................................................................... 5-217
Tyres .......................................................................................................................... 5-225
Blade .......................................................................................................................... 5-230
Lateral stabilizers ........................................................................................................ 5-231
SECTIONS INDEX PAGES
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1-2
SECTIONS INDEX
SECTION 6 - FRONT ATTACHMENT
Introduction .................................................................................................................... 6-1
Cylinder removal and installation ..................................................................................... 6-6
Cylinders ......................................................................................................................6-24
Antidrop valve ............................................................................................................... 6-81
Pins and bushings ........................................................................................................ 6-83
Buckets ........................................................................................................................6-88
SECTION 7 - HYDRAULIC SYSTEM
Hoses and fittings ........................................................................................................... 7-1
Hydraulic system ............................................................................................................ 7-8
Operation of circuits .....................................................................................................7-50
SECTION 8 - ELECTRICAL SYSTEM
Safety precautions .........................................................................................................8-1
Features and data .......................................................................................................... 8-2
Components location and operation ................................................................................8-4
Undercarriage electric components ................................................................................ 8-6
Control units electric system ...........................................................................................8-7
Light and beams group ................................................................................................... 8-8
Gauges and controls .......................................................................................................8-9
Electric components ..................................................................................................... 8-32
Control line and wiring harnesses ................................................................................. 8-37
SECTION 9 - TROUBLESHOOTING
Introduction .................................................................................................................... 9-1
Hydraulic system troubleshooting ................................................................................... 9-3
Electrical system troubleshooting .................................................................................. 9-28
SECTION 10 - PERFORMANCE TEST
Introduction .................................................................................................................. 10-1
General information for machine testing ....................................................................... 10-1
Standard performances ................................................................................................ 10-2
Preparation for performance test ................................................................................ 10-10
Excavator peformance test ......................................................................................... 10-12
Boom/slew performance ............................................................................................. 10-20
Gear box ..................................................................................................................... 10-25
Components performance .......................................................................................... 10-26
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1-3
INTRODUCTION
INTRODUCTION
FOREWORD
This service manual has been prepared in order to increase repair quality, providing to the technicians the elements
for a good knowledge of the product and showing the proper procedures to carry out the maintenance operations.
We recommend to thoroughly read the content and follow it when necessary.
It is a concise guide.It covers construction features, operation principle, troubleshooting, disassembly and assembly
of components and repair action.
Using this manual in systematic and rational way it is possible to reduce the repairing errors and delay that could
cause machine stop with a detriment of cost management.
The information quoted in this service manual are supplied also to be used for training aids. Therefore it is advisable
to be used in the training of new personnel that will be employed in the machine maintenance.
All the information, illustrations and specifications contained in this service manual are based on the latest product
information available at the time of publication.
The Dealer reserves the right to makes changes at any time without notice to this service manual for technical or
trading reasons.
MANUAL HANDLING
CHANGES AND SUPPLEMENTS
This service manual is carried out in loose-leaf and therefore can be easily kept up-to-date.
The personnel in charge is responsible for updating the manual and will insert the changes or supplements that the
Dealer will issue to its service organisation.
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1-4
INTRODUCTION
SYMBOLS AND INDICATIONS
In this service manual, symbols and indications are used to draw the attention on important points for safety and
quality.
SAFETY
This safety symbol is used for important safety messages. When you see this symbol, be alert ffor the
protection of your safety. Strictly follow the recommended precautions.
INDICATIONS
Reading this service manual you can find indications as IMPORTANT and NOTE that have the following meaning:
•IMPORTANT
Indicates a situation which, if not avoided, could cause damages to the machine.
•NOTE
Indicates an additional explanation for further technical information.
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