Case 988 User Manual

Copyright  2000 Case France
Printed in France
Case Cre 7-58655GB March 2000
788/988 - 788/988 Plus Crawler Excavators
788/988 - 788/988 Plus Wheeled Excavators
Table of Contents
DIVISION/SECTION SECTION N° REFERENCE N°
1 GENERAL INFORMATION
Safety, general and torque settings .................................................................1001 7-56942GB
Specifications (Crawler excavators).................................................................1002 7-80071GB
Specifications (Wheeled excavators)...............................................................1002 7-80062GB
2ENGINE
Engine removal and installation (788 - 988 - 988 Plus ....................................2002 7-58681GB
Engine removal and installation (788 Plus)......................................................2002 7-26560GB
Radiator and oil cooler.....................................................................................2003 7-80621GB
Engine specifications .......................................................................................2401 * *
Cylinder head and valve assembly ..................................................................2415 * *
Engine block ....................................................................................................2425 * *
Lubrication system...........................................................................................2445 * *
Cooling system ................................................................................................2455 * *
Turbocharger....................................................................................................2465 * *
Turbocharger failure analysis...........................................................................2565 * *
3 FUEL SYSTEM
Fuel system and filter.......................................................................................3410 * *
CAV injection pump..........................................................................................3411 * *
BOSCH injection pump....................................................................................3412 * *
Fuel injector .....................................................................................................3412 * *
BOSCH ANEROID fuel injection pump............................................................3416 * *
4 ELECTRICAL SYSTEM
Electrical schematic (Crawler excavators) - (before November 1999).............4001 7-80040GB
Electrical schematic (Wheeled excavators) - (before November 1999)...........4001 7-80021GB
Electrical schematic (Crawler excavators) - (November 1999 and after).........4001 7-26570GB
Electrical schematic (Wheeled excavators) - (November 1999 and after).......4001 7-26540GB
Electronic system and troubleshooting (Crawler excavators)..........................4002 7-80031GB
Electronic system and troubleshooting (Wheeled excavators) ........................4002 7-80051GB
Starter motor....................................................................................................4003 7-58691GB
Alternator .........................................................................................................4004 7-58701GB
Powersensor diagnostic tool............................................................................4010 7-79991GB
5 UNDERCARRIAGE
Track group (Crawler excavators)....................................................................5002 7-58711GB
6 DRIVE TRAIN
Travel reduction gear and brake (Crawler excavators)....................................6002 7-80661GB
Swing reduction gear and brake (788 - 788 Plus)............................................6003 7-80671GB
Swing reduction gear and brake (988).............................................................6003 7-58731GB
Swing reduction gear and brake (988 Plus).....................................................6003 7-84141GB
Front axle and service brake (Wheeled excavators)........................................6004 7-80681GB
Rear axle and service brake (Wheeled excavators) ........................................6005 7-80691GB
Gearbox and parking brake (Wheeled excavators) .........................................6008 7-80701GB
Twin wheels (Wheeled excavators) .................................................................6020 7-26170GB
* * Consult the engine Service Manual.

Case 988 Specifications

General

Brand	Case
Model	988
Category	Excavators
Language	English

Summary

Engine (Section 2)

Engine removal and installation (788 - 988 - 988 Plus)

Procedures for removing and installing engines on 788, 988, and 988 Plus models.

Engine removal and installation (788 Plus)

Specific procedures for removing and installing engines on 788 Plus models.

Engine specifications

Technical specifications pertaining to the engine.

Cylinder head and valve assembly

Details concerning the cylinder head and valve assembly.

Lubrication system

Overview and maintenance of the engine lubrication system.

Cooling system

Details and maintenance procedures for the engine cooling system.

Turbocharger

Information and specifications for the turbocharger system.

Turbocharger failure analysis

Guide for diagnosing and analyzing turbocharger failures.

Fuel System (Section 3)

Fuel system and filter

Maintenance and components of the fuel system and filter.

CAV injection pump

Information and specifications for the CAV injection pump.

BOSCH injection pump

Details and specifications for the BOSCH injection pump.

Fuel injector

BOSCH ANEROID fuel injection pump

Electrical System (Section 4)

Electrical schematic (Crawler excavators) - (before November 1999)

Electrical schematics for crawler excavators manufactured before November 1999.

Electrical schematic (Wheeled excavators) - (before November 1999)

Electrical schematics for wheeled excavators manufactured before November 1999.

Electrical schematic (Crawler excavators) - (November 1999 and after)

Electrical schematics for crawler excavators manufactured after November 1999.

Electrical schematic (Wheeled excavators) - (November 1999 and after)

Electrical schematics for wheeled excavators manufactured after November 1999.

Electronic system and troubleshooting (Crawler excavators)

Troubleshooting procedures for electronic systems in crawler excavators.

Electronic system and troubleshooting (Wheeled excavators)

Troubleshooting procedures for electronic systems in wheeled excavators.

Undercarriage Hydraulics (Section 7)

Hydraulic travel motor (Mono-speed crawler excavators)

Hydraulic travel motor (Two-speed crawler excavators)

Hydraulic travel motor (Wheeled excavators)

Travel control valve (Crawler excavators)

Travel, stabilizer and dozer blade control valve (wheeled excavators)

Steering, stabilizer, dozer blade and front axle locking cylinders (wheeled excavators)

Upperstructure Hydraulics (Section 8)

Hydraulic inspection, adjustment and schematics (crawler excavators)

Inspection, adjustment, and schematics for crawler excavator hydraulic systems.

Hydraulic inspection, adjustment and schematics (wheeled excavators)

Inspection, adjustment, and schematics for wheeled excavator hydraulic systems.

Hydraulic swivel (Crawler excavators)

Hydraulic swivel (Wheeled excavators)

Hydraulic pumps (788 - 788 Plus)

Details on hydraulic pumps for 788 and 788 Plus models.

Hydraulic pumps (988 - 988 Plus)

Details on hydraulic pumps for 988 and 988 Plus models.

Hydraulic swing pump

Attachment control valve

Swing control valve

Rotary control valve (Orbitrol) (Wheeled excavators)

Hydraulic swing motor and forced-feed safety block

Attachment and swing control block

Travel and option control block (Foot pedal, Wheeled excavators)

Travel hand control block (Inching, wheeled excavators)

Direction of travel inverter control block (Inching, crawler excavators)

Travel control block (788 - 788 Plus 988 - 988 Plus wheeled excavators)

Brake module (wheeled excavators)

Parking brake electro-control valve (wheeled excavators)

Electro-control valve block (Crawler excavators)

Electro-control valve block (wheeled excavators)