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 Please email at ireneroberson9@gmail.com and we will provide you with the any manual you need right away. We are constantly updating the site with new stock but we have much more than available in the website.