John Deere 750C, 850C Crawler Dozer Repair Technical Manual (TM1589)

John Deere 750C, 850C Crawler Dozer Repair Technical Manual (TM1589 10AUG04)

This technical manual provides in-depth service instructions for John Deere 750C and 850C crawler dozers. Covering tracks, hydrostatic transmission, engine, hydraulic systems, electrical wiring, blade cylinders, cab HVAC, and structural components, it is essential for complete mechanical servicing.

Model Covers:

John Deere 750C Crawler Dozer

John Deere 850C Crawler Dozer

John Deere 750C Series II Crawler Dozer

John Deere 850C Series II Crawler Dozer

File Format: PDF

Size: 13.26 MB

No. of pages: 776

Language: English

Delivery Method: Instant Download - Access your file immediately after purchase.

📑 Included Sections:

General Information and Safety

• Comprehensive safety practices, emergency readiness and protective equipment use
• Torque specs, ROPS handling, lifting procedures and chemical handling
• Fluids and lubricants: specs, storage, mixing and maintenance routines

Track Systems

• Track roller, idler, shoe, crossbar, and recoil spring teardown and rebuild
• Carrier roller leakage testing, wear specs, and crossbar installation procedures
• Track pitch, bushing and link measurements and chain reassembly procedures

Axles and Final Drive Assemblies

• Planetary gear disassembly, final drive housing removal and hub service
• Metal face seal inspections, lifting fixture usage and DFT tool applications

Transmission and Hydrostatic Drive

• Hydrostatic pump and motor removal, assembly and sensor adjustment
• Displacement valve, PDCV, charge manifold, and oil filter service
• Pedal and single-lever FNR control linkage teardown and adjustments

Engine and Mounting

• Engine R&I, fuel pump service, dynamic timing, and fuel system bleeding
• Mounts, pans, injection adjustments, coolant heaters and filter servicing

Cooling, Fuel and Speed Controls

• Fan, shroud, belt, radiator, speed linkage, decelerator and throttle systems
• Air cleaner diagnostics, tank removal and fuel line layout

Brake and Park Systems

• Brake pedal, valve linkage, hydraulic lines and solenoid control components
• Cross-section and disassembly of park brake assemblies and control valves

Electrical System and Controllers

• Battery and alternator servicing, full harness mapping and DEUTSCH connector repair
• Display monitor, engine ECU, and transmission controller installation procedures

Operator’s Station and HVAC

• Cab/ROPS removal, hand pump, seat teardown and enclosure panel service
• R134a system recovery, charging, belt tension, and compressor disassembly

Dozer Blade and Frame Systems

• Angledozer, PAT blade, pushbeam, trunnion and jack disassembly
• Lift, tilt, and angle cylinder teardown and seal kit installation
• Dozer control valve, relief valve, hydraulic pump and quick drop valve servicing

For complete service information, also see:

750C, 850C Crawler Dozer Operation and Test .......... TM1588
6068 Engine .......... CTM8
6068 POWERTECH Engine .......... CTM104
6076 Engine .......... CTM42
6081 POWERTECH Engine Repair .......... CTM86
Undercarriage Appraisal Manual .......... SP326

This John Deere 750C and 850C Crawler Dozer Repair Manual delivers full repair procedures for every major system. From hydrostatic drive and undercarriage to dozer blade and HVAC, it’s a vital tool for restoring machine performance and reliability.