All 356 pages of this International Harvester Company B-275 service manual PDF are dedicated to one tractor: the diesel B-275, with its electric glow plugs, heavy-duty dual clutch, constant-running PTO, and eight-forward/two-reverse transmission. You get hydraulic schematics tracing the selector valve and pump circuits, wiring diagrams for the generator, starter, and cold-start system, a troubleshooting chart for isolating faults before the first wrench turn, and page after page of exploded views spanning every system from cylinder head to axle carrier. Torque the cylinder head bolts to 70-75 foot-pounds in sequence; confirm the cut-out relay closes between 12.7 and 13.3 volts before signing off on any charging system repair. Every hour your tractor sits costs money. Grab this bookmarked PDF, search any spec by keyword, and get the factory answer on the first try.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| General Description and Specifications | | Tractor Identification, The Technical Specifications and Torque Data, And an Overview of the Diesel Engine, The Electric Glow Plugs and the Heavy Duty Dual Clutch |
| Diesel Engine | | The Cylinder Head and Valves, The Connecting Rods, Pistons and Rings, The Crankcase and Crankshaft, The Timing Gears and the Lubrication System |
| Engine Clutch | | The Heavy Duty Dual Clutch Removal, Inspection, Relining and Pedal Adjustment |
| Fuel System | | The Air Cleaner, The Injection Pump and Governor, The Injection Nozzles and the Fuel Filters and Bleeding |
| Cooling System | | The Radiator, The Water Pump, The Thermostat and the Fan and Belt Servicing |
| Transmission | | The Gearbox Servicing, The Gears and Shafts, The Shifting Mechanism and the Bearings |
| Differential | | The Differential, The Crown Wheel and Pinion, The Final Drives and the Rear Axle Shafts |
| Power Take-Off | | The Power Take-Off Shaft, The Engagement and the Drive Gears and Speeds |
| Brakes | | The Service Brakes, The Brake Shoe Relining and the Pedal Adjustment |
| Hydraulic System | | The Hydraulic Pump, The Lift Cylinder, The Control Valve and the Draft and Position Control |
| Electrical Equipment | | The Generator, The Starter Motor, The Storage Battery, The Voltage Regulator, The Cold Starting System and the Wiring Schematics |
| Chassis | | The Front Axle and Steering, The Wheels and Tyres and the Sheet Metal and Operator Platform |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Cylinder Head Bolts Torque | 70 to 75 foot-pounds | p. 72 |
| Rocker shaft bushing reaming diameter | 1.2510 inch to 1.2495 inch | p. 344 |
| Shim thicknesses for end float between cam and steering shaft | 0.010, 0.005 and 0.0024 inch | p. 345 |
| Brake Linings Thickness | 0.194 to 0.200 in. | p. 231 |
| Cut-Out Relay contacts close voltage | 12.7 to 13.3 volts | p. 312 |
| Cut-Out Relay points open discharge current | 3.5 and 5.0 amperes | p. 301 |
| Front Axle Pivot Pin Diameter | 1.115 to 1.116 inches | p. 331 |
| Front Axle Pivot Pin Bushing Bore (Pressed Into Place) | 1.118 to 1.120 inches | p. 331 |
| Power Take-Off Rated engine governed speed (full load) | 555 rpm | p. 28 |
| Front Wheel Toe-in | 1/4 to 3/8 inch | p. 31 |
