Part of the John Deere Repair Manuals.
This is the factory Repair Technical Manual for the John Deere 6820, 6920 and 6920S tractors built 2001 to 2004, the top end of the 6020 series. It covers teardown and reassembly of the 6068HLA PowerTech engine, the AutoPowr/IVT and PowrQuad Plus/AutoQuad transmissions, hydrostatic steering, brake valve and air brake system, the full hydraulic system from charge pump to rockshaft, wiring harnesses and charging/starting circuits, plus cab controls, air conditioning and electronic hitch control. Real numbers throughout: rated speed 2100 rpm, 19.5 L oil change with filter, 28 L coolant, torque values for pump and rockshaft hardware. Note this is the Repair book - diagnostics and fault codes live in the companion Diagnosis manual.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine | 72-139 | Installing and Removing Components, Fuel System, Air Intake System, Heating System, Exhaust System |
| Electrical Equipment | 140-359 | Wiring Harnesses, Charging Current Circuit, Starting Current Circuit, Fuses, Relays and Connectors, Monitoring Systems |
| Transmission | 360-739 | AutoPowr/IVT Transmission, PowrQuad/AutoQuad Transmission, Transmission Shifting Mechanisms, FWD Clutch, Differential |
| Steering and Brakes | 740-853 | Hydrostatic Steering, Brake Valve, Rear Wheel Brakes, Handbrake, Air Brake System |
| Hydraulic System | 854-1151 | Control Elements, Hydraulic Pump, Valves, Rockshaft, Additional Control Units |
| Operator's Cab | 1152-1250 | Controls and Instruments, Air-Conditioning System, Heating System, Seats, Electronic Hitch Control |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 6820 Engine Type | 6068HLA71 | p. 24 |
| 6920 Engine Type | 6068HLA72 | p. 24 |
| 6920S Engine Type | 6068HLA73 | p. 24 |
| Rated engine speed | 2100 rpm | p. 24 |
| Fuel tank capacity | 207 L or 250 L | p. 32 |
| Coolant change capacity | 28 L | p. 32 |
| Engine oil change (with filter) | 19.5 L | p. 32 |
