Part of the John Deere Repair Manuals.
TM1737 strips the John Deere XUV 850D Gator Utility Vehicle down to component level across 400 pages, and this John Deere XUV 850D technical manual PDF is the factory original, not a summary. Electrical work carries the most weight here: wiring schematics and harness routings trace every circuit from the key switch to the shutoff solenoid, with theory of operation and diagnostic tests so you can prove a fault before cutting a wire. The diesel engine, power train, steering, and brakes each get specifications, component locations, diagnostics, and full repair procedures. Check alternator belt deflection at 10 to 15 mm under 98 N of applied force, and torque the radiator fan temperature switch to 24 N·m, plus or minus 3. Tracing a dead circuit through an unmarked harness can burn a whole afternoon. Bookmarked and keyword-friendly, this PDF goes wherever your Gator quits.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Technical Manual | 1-2 | Specifications, Identification Numbers, Component Location, Schematics and Harnesses, Theory of Operation, Diagnostics |
| Introduction | 3-4 | Manual Description, Product Support Program, Bleed Tabs, Page Numbering |
| Safety | 5-8 | Safety Signs, Signal Words, Battery Handling, High-Pressure Fluid Lines, Rotating Blades, Cooling System |
| Specifications | 9-20 | Metric Fastener Torque Values, Inch Fastener Torque Values |
| Engine - Diesel | 21-110 | Engine Specifications, Engine Diagnostics, Engine Tests and Adjustments, Engine Repair |
| Electrical | 111-252 | Electrical Schematics and Harnesses, Electrical Operation and Diagnostics, Electrical Tests and Adjustments, Electrical Repair, Electrical Attachments Theory of Operation |
| Power Train | 253-326 | Power Train Specifications, Power Train Component Location, Power Train Theory of Operation, Power Train Tests and Adjustments, Power Train Repair |
| Steering | 327-348 | Steering Specifications, Steering Component Location, Steering Diagnostics, Steering Repair |
| Brakes | 349-370 | Brakes Specifications, Brakes Component Location, Brakes Diagnostics, Brakes Repair |
| Miscellaneous | 371-392 | Miscellaneous Specifications, Miscellaneous Component Location, Miscellaneous Repair |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Metric Fastener Torque Values (M6, Class 4.8, Lubricated) | 4.8 N•m | p. 11 |
| Inch Fastener Torque Values (1/4, Grade 1, Lubricated) | 3.7 N•m | p. 12 |
| Alternator Drive Belt Deflection (@98 N (22 lb) Applied Force) | 10 - 15 mm (0.4 - 0.6 in.) | p. 24 |
| Radiator Fan Temperature Switch Torque | 24 ± 3 N•m (212 ± 27 lb-in.) | p. 116 |
| HM-R1 resistor resistance | 91 ohms | p. 245 |
| Axle Shaft Castle Nut | 169 +119/-23 N•m (125 +88/-17 lb-ft) | p. 319 |
| Bearing Housing to Transmission | 47 N•m (35 lb-ft) | p. 319 |
| Engine Oil Capacity (w/filter) | 2.6 L (2.75 qt) | p. 23 |
| Cylinder Compression Pressure (Minimum) | 2746 kPa (398 psi) | p. 23 |
| Radiator Cap Opening Pressure | 88.3 ± 14.7 kPa (12.8 ± 2.2 psi) | p. 23 |
| Valve Clearance (Engine Cold) | 0.15 - 0.25 mm (0.006 - 0.010 in.) | p. 23 |
