This 382-page Versatile 256 Service Manual (OEM #40025631) breaks down every system on the 1984-1989 256, 276, and 276 II Bidirectional Tractors, from hydrostatic drive to three-point hitch. You get full wiring diagrams for tracing electrical faults without guessing, hydraulic schematics covering the drive and implement circuits, and a dedicated troubleshooting section that walks you through Drivetrain and Environmental System diagnosis, including the A/C refrigerant charging procedure. Set the PTO clutch adjustment ring pull to 68 N-m (50 ft. lbs.) and torque the universal yoke lock washer and cap screw to 90 N-m (65 ft. lbs.), straight from the factory data, not a forum thread. Your Bidirectional won't fix itself while you dig through three different parts books. Bookmarked by system, so you jump straight to Hydraulics or Electrical and get back under the tractor.
Complete the set for your 256, 276, 276 II
What's Inside This Versatile 256, 276, 276 II Manual
| System | Pages | Key Topics |
|---|
| Specifications and Data | 7-20 | Accessories, Air Cleaner, Axles, Brakes, Cab, Capacities, Cooling System, Dimensions |
| Engine Systems | 21-54 | Fuel System, Cooling System, Air Intake and Exhaust System, Lubrication System |
| Transfer Gearbox Repair | 55-76 | Transfer Gearbox, PTO Clutch, Engine End PTO Drop Box, Cab End Two-Speed PTO Drop Box |
| Drivetrain | 77-130 | Transmission, Splitter Box, Final Drive Drop Box, Axle Seals, Shifter Forks, Cam Plate |
| Hydrostatic System | 131-220 | Hydrostatic Pump, Hydrostatic Motor, Charge Pump, Charge Pressure, Swashplate, Servo Control, Valve Block, Relief Valve, Trunnion Bearings, Pump Housing, Displacement Control |
| Hydraulics | 221-272 | Hydraulic Pump, Steering System, Steering Valve, Implement Control Valve, Meter (Gerotor) |
| Three-Point Hitch | 273-320 | Rockshaft, Lift Arms, Lift Cylinders, Lift Links, Draft Arms, Top Link, Hydraulic Components, Electrical Components |
| Electrical System | 321-346 | Alternator, Batteries, Starter Motor, Cold Start Circuit, Engine Shutdown Circuit, Indication and Warning Circuits, Lighting Circuit, Windshield Wiper Motor |
| Environmental Systems | 347-366 | Refrigerant Charge Volume, Compressor, Condenser, Evaporator/Heater Core, Expansion Valve Replacement, Charging the System |
| Structures | 367-374 | Articulation Pivot Pin, Articulation Bushings, Oscillation Bushing, Engine End Oscillation Cradle, Cab |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Articulation lock | Engage articulation lock. | p. 4 |
| PTO clutch | Always disengage the PTO clutch | p. 4 |
| Three-point hitch | Always disengage the PTO clutch and three-point hitch. | p. 4 |
| PTO clutch adjustment ring pull | 68 N·m (50 ft. lbs.) | p. 67 |
| Universal yoke lock washer and cap screw torque | 90 N·m (65 ft. lbs.) | p. 68 |
| Low pressure-flow compensator reset specification | 2067 kPa (300 psi) | p. 233 |
| Hydraulic system pressure tolerance | ±10 percent | p. 287 |
| Hydraulic system pressure specification | 2.0 mPa (2 900 psi) | p. 287 |
| Articulation pivot pin nuts | 100 ft. lbs. (135 N·m) | p. 367 |
| Axles, Differentials Oil Capacity (each) | 2.3 L | p. 7 |
| Dropbox Ratio | 3.18:1 | p. 7 |
