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Part of the John Deere Repair Manuals.
This is the factory repair manual for the John Deere 6405 and 6605 tractors. Both run the same block family: a 4.5 L four cylinder turbo diesel making 77 kW (105 hp) in the 6405, and a 6.8 L six making 84 kW (114 hp) in the 6605. Inside you get engine removal and installation, the fuel, air intake, cooling and exhaust systems, wiring harnesses and the charging and starting circuits, SyncroPlus and Power Reverser transmissions with the creeper option, front wheel drive clutch, final drives, hydrostatic steering, wet disk brakes, the hydraulic pump, rockshaft and selective control valves, plus cab work down to the air conditioning. These are mechanical era tractors, so everything here is printed procedure, specs, and torque values you can work from with hand tools.
What's Inside This Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 6-24 | Safety Measures, Machine Runaway Prevention, Fire Hazards, Battery Safety, High-Pressure Fluids, ROPS Maintenance |
| General Information | 25-70 | Specifications, Tune-Up Procedures, Predelivery Inspection, Torque Values, Lubricant Specifications, Product Identification |
| Engine | 71-126 | Engine Removal and Installation, Fuel System, Air Intake, Cooling System, Exhaust System, Cold Weather Starting Aids |
| Fuel, Air Intake, Cooling and Exhaust Systems | 127-170 | Fuel Tank, Fuel Filters, Bleeding the Fuel System, Injection Pump, Injectors, Air Cleaner, Radiator, Exhaust |
| Electrical System | 171-317 | Connectors, Wiring Harnesses, Charging Circuit, Starting Circuit, Fuses and Relays, Monitoring Systems |
| SyncroPlus Transmission | 318-483 | Transmission Removal and Installation, Clutch, Shift Linkage, Creeper, Pressure Tests, Gears and Shafts |
| Power Reverser Transmission | 484-631 | Power Reverser Clutch Pack, Control Valve, Pressure Tests, Reverser Housing, Gears and Shafts |
| Drive Systems | 632-839 | U-Jointed Shafts, Front Wheel Drive Clutch, Differential, Hydraulic Pump Drive, Final Drives, PTO Options |
| Steering and Brakes | 840-933 | Hydrostatic Steering, Steering Cylinders, Brake Valve, Rear Brakes |
| Hydraulic System | 934-1073 | Hydraulic Pump, Valves, Rockshaft, Three-Point Hitch, Selective Control Valves, Independent Control Valve |
| Miscellaneous | 1074-1156 | Main Frame, Front Axle Supports, Ballast and Weights, Tyres and Wheels, Sheet Metal |
| Operator's Cab and Station | 1157-1289 | Cab Removal, Controls and Instruments, Electronic Hitch Control, Air-Conditioning, Heating, Seats |
| Special Tools (Dealer-Fabricated) | 1290-1298 | Dealer-Fabricated Tools, Tool Drawings and Dimensions, Application Notes |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine power at rated engine speed (with viscous fan drive), according to ECE-R24 | 77 kW (105 hp) (6405); 84 kW (114 hp) (6605) | p. 27 |
| Max. PTO power at rated PTO speed (factory measured, with 1000 rpm at PTO) | 69 KW (94 hp) (6405); 74 kW (101 hp) (6605) | p. 27 |
| Number of cylinders | 4 (6405); 6 (6605) | p. 27 |
| Bore | 106.5 mm (4.19 in.) | p. 27 |
| Stroke | 127.0 mm (5.00 in.) | p. 27 |
| Displacement | 4525 cm³ (276 cu.in.) (6405); 6790 cm³ (414 cu.in.) (6605) | p. 27 |
| Firing order | 1-3-4-2 (4-cylinder tractors); 1-5-3-6-2-4 (6-cylinder tractors) | p. 27 |
| Valve clearance (engine cold) - Intake valves | 0.31 mm to 0.38 mm (0.012 in. to 0.015 in.) | p. 27 |
| Valve clearance (engine cold) - Exhaust valves | 0.41 mm to 0.48 mm (0.016 in. to 0.19 in.) | p. 27 |
| Rated engine speed | 2300 rpm | p. 27 |
| Max. torque | 432 N·m (319 lb-ft) (6405 at 1500 rpm); 487 N·m (359 lb-ft) (6605 at 1300 rpm) | p. 27 |
| Power Reverser Transmission Type | synchronized transmission | p. 28 |
| Power Reverser Transmission Range shifting | mechanically, synchronized | p. 28 |
| Power Reverser Transmission Shifting of the 4 gears | mechanically, synchronized | p. 28 |
| Power Reverser Transmission Shifting of the reverse drive lever | mechanical-hydraulic, under load, without operating clutch | p. 28 |
| Power Reverser Transmission 30 km/h (18.5 mph) transmission | 4 ranges | p. 28 |
| HydraVantage Hydraulic System pressure - min. (stand-by) | 1200-1500 kPa (12-15 bar; 174-220 psi) | p. 29 |
| HydraVantage Hydraulic System pressure - max. | 20000 kPa (200 bar; 2900 psi) (tractors up to serial number XXXXXX); 17500 kPa (175 bar; 2540 psi) (tractors from serial number XXXXXX) | p. 29 |
| Fuel tank capacity | 116 L (30.6 U.S. gal.) (6405); 165 L (43.6 U.S. gal.) (6405* and 6605); 207 L (54.6 U.S. gal.)* (6605) | p. 31 |
| Cooling system 6405 - coolant change, tractors with cab | 13.5 L (3.6 U.S. gal.) (6405) | p. 31 |
