CRAWLER EXCAVATOR CX75SR/CX80 TIER 3 FACTORY
SERVICE REPAIR WORKSHOP MANUAL

CX 75SR CX 80

TABLE OF CONTENTS
1 GENERAL INFORMATION
Safety, general information and standard torque data..................................... 1001 7-27691EN
General specifications and special torque setting ........................................... 1002 SC75SRCX80-1002-2EN
2 ENGINE
Removal and installation of the engine............................................................ 2000 SM75SR2000-0EN
Engine specifications..............................................................................................*
Disassembly and assembly of the engine ..............................................................*
3 FUEL SYSTEM
Removal and installation of the fuel tank......................................................... 3001 SM75SR3001-0EN
Fuel engine system ................................................................................................*
4 ELECTRICAL SYSTEM
Electrical and engine functions and service support ....................................... 4001 SC75SRCX80-4001-0EN
Electrical equipment and electrical circuit diagrams........................................ 4020 SC75SRCX80-4020-0EN
5 UNDERCARRIAGE
Removal and installation of tracks ................................................................... 5001 SM75SR5001-0EN
Rollers ............................................................................................................. 5003 SM75SR5003-0EN
Take-up roller................................................................................................... 5005 SM75SR5005-0EN
6 DRIVE TRAIN
Removal and installation of the drive motor and
final drive transmission................................................................................ 6001 SM75SR6001-0EN
Disassembly and assembly of the drive motor and
final drive transmission................................................................................ 6002 SM75SR6002-0EN
Removal and installation of the swing motor and
swing reduction gear ................................................................................... 6003 SM75SR6003-0EN
Disassembly and assembly of the swing reduction gear ................................. 6004 See 8019
7 UNDERCARRIAGE HYDRAULICS

8 UPPERSTRUCTURE HYDRAULICS
Specifications, troubleshooting, checks and
hydraulic pressure settings..........................................................................8001 SC75SRCX80-8001-1EN
Removal and installation of the hydraulic reservoir .........................................8002 SM75SR8002-0EN
Removal and installation of the main hydraulic pump......................................8003 SM75SR8003-0EN
Removal and installation of the main hydraulic control valve - CX75SR .........8004 SM75SR8004-0EN
Removal and installation of the main hydraulic control valve - CX80 ..............8004 SM80-8004-0EN
Removal and installation of the attachment cylinders......................................8005 SM75SR8005-0EN
Removal and installation of the hydraulic swivel ..............................................8006 SM75SR8006-0EN
Removal and installation of the pilot blocs.......................................................8007 SM75SR8007-0EN
Disassembly and assembly of the main hydraulic pump .................................8010 SM75SR8010-0EN
Disassembly and assembly of the main hydraulic control valve - CX75SR .....8011 SM75SR8011-0EN
Disassembly and assembly of the main hydraulic control valve - CX80 ..........8011 SM80-8011-0EN
Disassembly and assembly of the attachment cylinders .................................8012 SM75SR8012-0EN
Disassembly and assembly of the hand control levers ....................................8013 SM75SR8013-0EN
Disassembly and assembly of the foot control levers ......................................8014 SM75SR8014-0EN
Disassembly and assembly of the solenoid valve block ..................................8015 SM75SR8015-0EN
Disassembly and assembly of the cushion valve.............................................8016 SM75SR8016-0EN
Disassembly and assembly of the hydraulic swivel .........................................8018 SM75SR8018-0EN
Disassembly and assembly of the swing motor ...............................................8019 SM75SR8019-0EN
Hydraulic functions ..........................................................................................8020 SC75SRCX80-8020-0EN
Hydraulic component functions........................................................................8030 SC75SRCX80-8030-0EN
9 UPPERSTRUCTURE
Air conditioning unit .........................................................................................9007 SM75SR9007-0EN
Large size hydraulic schematics - CX75SR.................................................. Pocket 87725706A
Large size electrical schematics - CX75SR.................................................. Pocket 87732675A
Large size hydraulic schematics - CX80....................................................... Pocket KAJ11600-E00
Large size electrical schematics - CX80....................................................... Pocket KAJ11060-E00