Part of the John Deere Repair Manuals.
TM-1164 is the factory technical manual John Deere Dubuque Works wrote for the JD850 crawler dozer. It gives the factory capacities, torques, clearances and hydrostatic pressures for the 6619T turbo diesel and the dual-path hydrostatic drive.
It covers track chains, rollers and recoil springs, then final drives, the transfer drive, parking brakes, the 24 volt electrical system and the blade hydraulics. The system testing groups cover operational checkout and hydrostatic pressure tests. They also hold the electrical schematic, the wiring diagram and the hydraulic schematics.
A made-up figure on this machine costs real money. A guessed shoe bolt torque lets shoes work loose, and a guessed relief setting puts the hydrostatic pumps and motors at risk. Print the sections you need and let those pages get greasy on the bench.
What's Inside This John Deere JD850 Manual
| System | Pages | Key Topics |
|---|---|---|
| Contents and Index | 1-26 | Section and Group Contents, Alphabetical Index, List of Effective Pages |
| Introduction, Safety and General Specifications | 27-80 | Safety Information, General Specifications, Engine Data, Capacities, Predelivery, Delivery and After-Sale Services |
| Fuels and Lubricants | 81-86 | Fuels, Lubricants, Coolant |
| Track Systems (01) | 87-186 | Track Chains and Shoes, Rollers, Front Idlers, Recoil Springs, Track Adjusters, Sprockets, Specifications and Special Tools |
| Drive Axle and Final Drives (02) | 187-218 | Drive Axle Housing and Support, Axle Shaft, Bearings and Reduction Gears |
| Hydrostatic Transmission (03) | 219-402 | Transmission Controls, Hydrostatic System, Pumps, Motors and Valves |
| Engine (04) | 403-560 | Engine Removal and Installation, Cylinder Head and Valves, Fuel Injection System, Engine Specifications and Special Tools |
| Engine Auxiliary Systems (05) | 561-586 | Cold Weather Starting Aids, Cooling System |
| Transfer Drive (08) | 587-600 | Transfer Drive Housings and Covers |
| Parking and Emergency Brakes (11) | 601-620 | Parking-Emergency Brakes |
| Electrical System (16) | 621-760 | Batteries, Support and Cables, Charging and Starting Components, Wiring Harnesses |
| Bulldozer (32) | 761-816 | Bulldozer Blades, Bulldozer Hydraulic System |
| System Testing: Operational Checkout and Engine (90) | 817-852 | Operational Checkout, Engine Tests and Diagnosing Malfunctions |
| System Testing: Electrical System and Power Train (90) | 853-896 | Electrical System Testing, Electrical System Schematic and Wiring Diagram, Power Train Diagnosis |
| System Testing: Bulldozer Hydraulic System (90) | 897-936 | Flow Meter Tests, Bulldozer Hydraulic Schematics, Hydraulic Analyzer |
| System Testing: Hydrostatic System (90) | 937-1062 | Hydrostatic System Tests and Pressure Settings, Hydrostatic Schematics |
| System Testing: Tracks, Heating and Air Conditioning, Specifications (90) | 1063-1110 | Track Adjustment, Heating and Air Conditioning, System Testing Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cooling system capacity | 9 gal. (34.0 L) | p. 36 |
| Fuel tank capacity | 82 gal. (310.4 L) | p. 36 |
| Crankcase capacity, including filter | 34 qt. (32.2 L) | p. 36 |
| Splitter drive capacity | 1.5 gal. (5.7 L) | p. 36 |
| Final drive, each, inner compartment | 5.5 gal. (20.8 L) | p. 36 |
| Final drive, each, outer compartment | 3.5 gal. (13.2 L) | p. 36 |
| Hydrostatic drives capacity | 40 gal. (151.4 L) | p. 36 |
| Hydraulic system capacity | 35 gal. (132.5 L) | p. 36 |
| Hydraulic system pressure (vane pump) | 2250 psi (15 514 kPa) | p. 36 |
| Main bearing cap screw torque | 205 to 215 lb-ft (278 to 292 Nm) | p. 523 |
| Valve clearance, intake / exhaust | 0.015 ± 0.002 in. (0.38 ± 0.05 mm) / 0.025 ± 0.002 in. (0.64 ± 0.05 mm) | p. 525 |
| Track shoe bolts, regular, lubricated | 220 lb-ft (301 N·m), then turn each bolt an additional 120° | p. 171 |
| Sprocket cap screws, D-grade / F-grade | 300 lb-ft (407 N·m) / 425 lb-ft (576 N·m) | p. 176 |
| Hydrostatic neutral charge pressure, fast idle | 260 to 340 psi (1793 to 2344 kPa) (18 to 23 bar) | p. 941 |
| High pressure relief valve, 850 and 855 | 6300 to 6700 psi (434 to 461 bar) | p. 942 |
