Part of the John Deere Repair Manuals.
TM1021 is John Deere's technical manual for the 6600, SideHill 6600 and 7700 combines. Repair, diagnosis and specifications are all in this one book.
It covers the 303, 329, 362 and 404 engines, including the 404 Turbo, plus the Sundstrand hydrostatic drive, power steering, brakes and the SideHill leveling system. It includes the wiring diagrams, the hydraulic system diagram and step-by-step diagnosis charts.
The chapters run by system: headers, feeder house, separator, grain tank and augers, then major drives.
What's Inside This John Deere 6600, SideHill 6600, 7700 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Specifications and Predelivery | 1-64 | Contents, Dimensions and Capacities, Engine and Transmission Summary, Controls and Instruments, Predelivery, Delivery and After-Sale Inspection |
| Lubrication, Diagnosis and Tune-Up | 65-94 | Oils and Viscosities, Lubrication Points, Diagnosing and Testing, Compression Test, Engine Oil Pressure, Valve Clearance, Ignition, Adjustments |
| Engines: Cylinder Head, Block and Crankshaft | 95-154 | Engines 303, 329, 362 and 404, Diagnosis, Removal, Cylinder Head, Valves, Camshaft, Liners, Pistons, Connecting Rods, Crankshaft, Flywheel |
| Engines: Lubrication, Cooling and Governor | 155-226 | Oil Pump and Filter, Radiator and Fan, Water Pump, Rotary Screen, Governor and Speed Control Linkage, Specifications, Special Tools |
| Fuel System | 227-340 | Air Intake, Fuel Tank, Electric Fuel Pump, Diesel Injection Pump, Injection Nozzles, Filters, Carburetor, Gasoline Fuel Pump, Specifications |
| Electrical System: Wiring Diagrams and Diagnosis | 341-366 | Wiring Diagrams, Electrical Diagnosis, Main Harness, Cab Wiring, Low Shaft Speed Monitor Wiring |
| Charging, Starting and Ignition Circuits | 367-454 | Motorola and Delcotron Alternators, Voltage Regulator, Delco-Remy and John Deere Starters, Relays, Ignition Circuit, Distributor |
| Lights, Instruments and Shaft Speed Monitor | 455-534 | Lights, Instruments, Switches, Low Shaft Speed Monitor, Harness Replacement, Batteries, Fuses, Specifications |
| Power Train: Clutch, Transmission and Final Drives | 535-594 | Clutch, Master Cylinder, Transmission, Differential, Final Drives |
| Hydrostatic Drive, Rear Wheel Drive and Tracks | 595-752 | Sundstrand Hydrostatic Drive, Power Rear Wheel Drive, Posi-Torq Ground Drive, Tires and Wheels, Crawler Tracks |
| Power Train Specifications, Power Steering and Brakes | 753-816 | Power Train Specifications, Power Steering, Steering Pump, Brakes, Brake Fluid, Specifications |
| Hydraulic System Operation and Tests | 817-964 | Hydraulic System Diagram, Operation, Glossary, Diagnosing Malfunctions, Step-By-Step Diagnosis Charts |
| Hydraulic Components and Specifications | 965-1048 | Reservoir, Cessna Pumps, Control Valves, Cylinders, Motors, Oil Lines and Hoses, Relief Pressures, Capacities |
| Operator's Cab | 1049-1152 | Cab Pressurizer, Air Conditioning, Refrigerant, Heater, Personal Posture Seat, Miscellaneous, Specifications |
| Headers | 1153-1250 | 200 Series Platforms, Quik-Tatch Platforms, 40 Series Corn Heads, Row-Crop Heads, Specifications |
| Feeder House | 1251-1284 | Conveyor Chain and Drum, Paddles and Stripper, SideHill, Variable Speed Drive, Lower and Upper Shafts, Specifications |
| Separator | 1285-1384 | Cylinder, Concave and Beater, Cylinder Drives, Straw Walkers, Straw Chopper and Spreader, Shoe, Fan and Sieves, Tailings, Clean Grain Elevator, Specifications |
| Grain Tank and Unloading Augers | 1385-1404 | Auxiliary Augers, Inner and Outer Unloading Augers, Grain Tank, Specifications |
| Major Drives | 1405-1428 | Engine Powershaft, Primary and Secondary Countershaft, Separator Control Lever, Specifications |
| SideHill 6600 Leveling System | 1429-1490 | General Information, Electrical Components, Hydraulic Components, Leveling Cylinders |
| Header Height Control and Unloading Auger Swing | 1491-1550 | Automatic Header Height Control Diagnosis, Mechanical, Electrical and Hydraulic, Unloading Auger Swing and Latching, Specifications |
| Machine Reconditioning | 1551-1564 | Cleaning, Servicing and Repainting, Decal and Label Installation, Shields and Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engines | 6-cylinder gasoline 303, 329, 362; diesel 329, 404, 404 Turbo | p. 97 |
| Engine speed | Slow idle 800 rpm (gasoline), fast idle 2650 rpm | p. 8 |
| Valve clearance, gasoline 303 and 329 | Intake 0.014 in. (0.356 mm), exhaust 0.022 in. (0.559 mm) | p. 86 |
| Valve clearance, diesel 404 Turbo | Intake 0.018 in. (0.457 mm), exhaust 0.028 in. (0.711 mm) | p. 86 |
| Spark plug gap and torque | 0.025 in. (0.635 mm) gap, 35 ft-lbs (45 Nm) | p. 88 |
| Compression, 404 Turbo | 330-370 psi (22-25 bar) | p. 85 |
| Engine oil pressure, gasoline 329 | 45 to 65 psi (3.0 to 4.4 bar) at 2500 rpm | p. 88 |
| Cooling system, 303 and 329 | 28 U.S. Qts. (27 L) | p. 9 |
| Cooling system, 362 and 404 | 32 U.S. Qts. (30 L) | p. 9 |
| Fuel tank | 6600: 57 U.S. Gals. (216 L); 7700: 72 U.S. Gals. (273 L) | p. 9 |
| Transmission | 11 U.S. Qts. (10.5 L) | p. 9 |
| Hydraulic system capacity | 6600 and 7700: 17-1/2 U.S. Qts. (16.55 L); SideHill 6600: 24-1/2 U.S. Qts. (23 L) | p. 1044 |
| Hydraulic reservoir | 14 U.S. Qts. (13.3 L) | p. 1044 |
| Main system relief pressure | 2000 psi (136 bar) early machines, 2250 psi (153 bar) later and SideHill 6600 (+ 100 psi) | p. 1043 |
| Steering system relief pressure | 1250 psi (85 bar) to 1750 psi (119 bar) by serial number | p. 1043 |
| Hydrostatic drive high-pressure relief | 5300 psi (360 bar) + 200 psi (14 bar) | p. 754 |
| Hydrostatic charge relief (nominal) | 180 psi (12 bar) | p. 754 |
| Separator speeds | Straw walkers 157 rpm, straw chopper 2358 rpm, cleaning fan 272-965 rpm | p. 1381 |
| Lock nut on powershaft | 240 ft-lbs (325 N-m) | p. 1382 |
| Grain tank without extensions | 6600 and SideHill 6600: 112 bu. (3.95 m3); 7700: 129 bu. (4.55 m3) | p. 1403 |




















