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Part of the John Deere Repair Manuals.
This is the factory repair manual for John Deere 6415 and 6615 tractors, the book dealer techs use when a component comes out of the machine. It covers full removal, teardown and rebuild of the PowerTech 4.5L (6415) and 6.8L (6615) diesels, both SyncroPlus and PowrQuad transmissions, the MFWD front axle, differential and final drives, power steering, brakes, and the hydraulic system including the gear pump, rockshaft, SCVs and three-point hitch. You get torque values, specifications, fuel and lubricant charts, electrical repair for the alternator, starter and wiring, cab and HVAC service, plus drawings for dealer-fabricated special tools. Every procedure is step-by-step with the specs printed where you need them, not buried in an appendix.
Other editions of this manual
What's Inside This Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 7-28 | Safety Precautions and Decals |
| General Information | 29-65 | Machine and Engine Specifications, Torque Values, Fuel and Lubricants |
| Engine | 66-85 | PowerTech 4.5L/6.8L Diesel Engine Removal, Teardown and Rebuild |
| Fuel Systems, Air Intake, Cooling and Exhaust | 86-131 | Fuel Injection, Air Intake, Cooling and Exhaust Service |
| Electrical System | 132-281 | Alternator, Starter, Batteries, Instruments and Wiring Repair |
| SyncroPlus Transmission | 282-462 | SyncroPlus Transmission Overhaul, Clutch and Shifting |
| PowrQuad Transmission | 463-611 | PowrQuad Transmission Overhaul, Clutch Packs and Controls |
| Drive Systems | 612-786 | MFWD Front Axle, Differential, Differential Lock and Final Drives |
| Steering and Brakes | 787-848 | Power Steering and Brake System Service and Adjustment |
| Hydraulic System | 849-979 | Hydraulic Pump, Rockshaft, SCV and Three-Point Hitch Repair |
| Miscellaneous | 980-1038 | Miscellaneous Procedures and Accessories |
| Operator's Cab | 1039-1129 | HVAC, Controls and Sheet Metal |
| Special Tools (Dealer-Fabricated) | 1130-1143 | Dealer-Fabricated Special Service Tools |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 6415 | ||
| Displacement, 6415 | 4.5 L | p. 29 |
| Power at rated speed, 6415 | 79.5 kW (108 cv) | p. 29 |
| Engine rated speed, 6415 | 2300 rpm | p. 29 |
| Maximum torque, 6415 | 445 N.m (328.2 lb-ft) | p. 29 |
| Speed at maximum torque, 6415 | 1500 rpm | p. 29 |
| PTO Power, 6415 | 66 kW (90 cv) | p. 30 |
| PTO speed / Engine speed (SyncroPlus Transmission), 6415 | 540/2100 rpm | p. 30 |
| Hydraulic Pump / Pump flow rate | Gears / 66 L/min (17.4 gpm) | p. 31 |
| 6615 | ||
| Displacement, 6615 | 6.8 L | p. 29 |
| Power at rated speed, 6615 | 88.5 kW (120.3 cv) | p. 29 |
| Engine rated speed, 6615 | 2100 rpm | p. 29 |
| Maximum torque, 6615 | 514 N.m (379.1 lb-ft) | p. 29 |
| Speed at maximum torque, 6615 | 1400 rpm | p. 29 |
| PTO Power, 6615 | 76 kW (103 cv) | p. 30 |
| PTO speed / Engine speed (SyncroPlus Transmission), 6615 | 540/2150 rpm | p. 30 |
| 6415, 6615 | ||
| PTO speed / Engine speed (PowerQuad Transmission) | 540 or 1000/2100 rpm | p. 30 |
| Clutch Actuation | Auto-adjustable hydraulic | p. 30 |
| Clutch Diameter of disks | 228 mm (9 in) | p. 30 |
| Creeper Transmission Speed reduction | Approximately 90% | p. 30 |
| Hydraulic System Maximum pressure | 190 kgf/cm² (200 bar; 2,900 PSI) | p. 31 |
