Part of the John Deere Repair Manuals.
This is the factory John Deere Technical Manual for one machine, the JD302-A Loader and Backhoe Loader, OEM TM-1090, 558 pages running from basic engine work through the 9250 backhoe control valve. Factory wiring diagrams cover the charging, starting, and ignition circuits. Hydraulic schematics trace fluid from the main pump through the loader, steering, brake, and backhoe valves. A full System Testing section handles engine, electrical, power train, and hydraulic faults. Torque the wheel retainers to 100 lb-ft, set pump shaft end play between 0.002 and 0.006 inch, and pull the rocker arm shaft clamp screws to 55 lb-ft (75 Nm). Forum threads won't rebuild your reverser. Bookmarked by system and text-searchable: type the spec, find the number, put a wrench on it.
What's Inside This John Deere JD302-A Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 4-10 | FOS Manuals, Technical Manuals, Service Procedures, Specifications, System Operation, Diagnosis |
| General | 11-48 | General Machine Specifications, Predelivery, Delivery, And After-Sale Services, Lubricants |
| Engine | 49-128 | Engine Removal and Installation, Basic Engine, Engine Lubricating System, Engine Cooling System, Fuel System, Speed Control Linkage, Air Intake System |
| Electrical System | 129-182 | Batteries, Charging System, Starting System, Ignition System, Gauges and Switches, Specifications and Special Tools |
| Power Train | 183-236 | Clutch Assemblies, Transmission, Reverser, Continuous Running PTO, Differential and Parking Brake, Final Drives, Specifications and Torque Values |
| Hydraulic System | 237-380 | Transmission Pump, Main Hydraulic Pump, Reverser Clutch Control Valve, Pressure Control Valve, Power Steering Valve, Brake Valve, Loader Control Valve, 9250 Backhoe Control Valve |
| Miscellaneous | 381-418 | Front End Assembly, Loader Frame, Boom, And Bucket, 9250 Backhoe Frame, Dipperstick |
| System Testing | 419-552 | Diagnosis and Testing, Engine Testing, Electrical System Testing, Power Train Testing, Hydraulic System Testing, Hydraulic Analyzer Tests, Specifications and Special Tools |
| Index | 553-556 | Alphabetical Index |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel retainer torque | 100 lb-ft | p. 44 |
| Tie rod clamp cap screw torque | 40 lb-ft | p. 45 |
| Pump shaft end play | 0.002 to 0.006 in. | p. 242 |
| Pump piston spring length | 1.62 in. | p. 243 |
| Discharge valve seat installation force | 850 pounds | p. 244 |
| Clutch control valve spring (8, Fig. 2) free length | 1.63 in. | p. 250 |
| Clutch control valve spring (8, Fig. 2) test length | 1.12 in. | p. 250 |
| lift check spring test | 0.5 in. with 0.75 pounds | p. 270 |
| Flow control valve stop pin exposed length | 0.9375 in. | p. 301 |
| Transmission-hydraulic filter relief valve spring free length | 2.56 in. (65.02 mm) | p. 319 |
| Transmission-hydraulic filter relief valve spring test length | 1.31 in. (33.27 mm) | p. 319 |
| Transmission pump relief valve spring free length | 1.87 in. (47.50 mm) | p. 322 |
