Part of the John Deere Repair Manuals.
This is the John Deere TM1518 Technical Manual for Gator Utility Vehicles in 4X2 and 4X6 configurations, the same 692 page factory document Deere wrote for its own service technicians. It covers the gas air-cooled and liquid-cooled engines (FE290D and FD620D) and the diesel engine, along with the electrical system, power train, steering, brakes, and the rotary broom attachment.
Every system is grouped so you can move straight to specifications, diagnostics, tests and adjustments, and repair procedures for the job in front of you. Torque values, carburetor settings, battery data, and drive belt measurements are all laid out for each variant.
Whether you are chasing a no-start, rebuilding a carburetor, or replacing a worn drive belt, this PDF gives you the factory procedures and specs to do the work correctly on your own Gator.
What's Inside This John Deere 4X2, 4X6 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 5-10 | Recognize Safety Information, Replace Safety Signs, Handle Fluids Safely - Avoid Fires, Be Prepared for Emergencies, Use Care in Handling and Servicing Batteries |
| Specifications & Information | 11-28 | Fastener Torques, O-Ring Seal Service Recommendations, General Information, Coolant Specifications, Serial Number Locations |
| Engine - Gas (Air-Cooled) | 29-78 | Specifications, Component Location, Diagnostics, Tests and Adjustments, Repair |
| Engine - Gas (Liquid-Cooled) | 79-132 | Specifications, Component Location, Diagnostics, Tests and Adjustments, Repair |
| Engine - Diesel | 133-228 | Specifications, Component Location, Theory of Operation, Diagnostics, Tests and Adjustments, Repair |
| Electrical | 229-490 | Operation and Diagnostics, Specifications - 4X2 Gas, Component Locations, Schematics and Harnesses - 4X2 Gas, Tests and Adjustments, Cargo Box Lift Kit |
| Power Train - Gear | 491-526 | Specifications, Component Location, Theory of Operation, Diagnostics, Tests and Adjustments, Repair |
| Steering | 527-542 | Specifications, Component Location, Diagnostics, Tests and Adjustments, Repair |
| Brakes | 543-556 | Adjustments, Diagnostics, Repair, Specifications, System Operation, Troubleshooting Guide |
| Attachments | 557-624 | Specifications, Rotary Broom, Component Location, Electrical, Operation and Diagnostics, Rotary Broom Electrical |
| Rotary Broom Engine | 625-670 | Specifications, Component Location, Diagnostics, Tests and Adjustments, Repair, Torque Specifications |
| Miscellaneous | 671-678 | Specifications, Tests and Adjustments, Repair |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 4X2 | ||
| Rear Wheel Mounting Cap Screw Torque | 88 N•m (65 lb-ft) | p. 519 |
| All Models | ||
| Front Wheel Mounting Cap Screw Torque | 88 N•m (65 lb-ft) | p. 669 |
| Drive Belt Width (New) | 30.2 mm (1.19 in.) | p. 493 |
| Drive Belt Width (Minimum) | 27 mm (1.063 in.) | p. 493 |
| F3 Fuse (W18 Light and Horn Wiring Schematic) | 15A | p. 420 |
| 6X4 | ||
| Rear Wheel Mounting Cap Screw Torque | 88 N•m (65 lb-ft) | p. 521 |
| FE290D (4X2) | ||
| Carburetor SLOW idle mixture screw initial setting (PIN -12700) with no limiter cap | 1-3/8 Turns | p. 31 |
| Carburetor SLOW idle stop screw setting | .50 rpm less than throttle control arm SLOW idle stop screw setting | p. 31 |
| 4X2 Gas | ||
| Battery Voltage | 12 | p. 235 |
| Battery BCI group | U-1 | p. 235 |
| 6X4 Diesel | ||
| F11 Fuse (W31 Backup Alarm Wiring Harness) | 10 A | p. 317 |
| Rotary Broom Engine | ||
| Air Cleaner Assembly Carburetor Mounting Nuts Torque | 10 - 12 N•m (88 - 106 lb-in.) | p. 640 |



















