Part of the Case Repair Manuals.
This 641-page Case IH Workshop Manual covers the 1255 and 1455 tractors. You get full wiring diagrams for the generator, alternator and starting motor circuits, plus hydraulic schematics covering the XL Control Centre's range, speed shift, and draft/position control linkages. There's a full troubleshooting section for the injection pump and starter systems, and page after page of teardown procedures from the crankshaft and pistons through the chassis and brakes. Set nozzle opening pressure at 15 MPa for VA/CR pumps, and torque the dual clutch to 810-890 daN on the 1255 XL. No more chasing electrical gremlins with a test light and a guess. Bookmarked by section so you can jump straight from engine to fuel system to chassis without scrolling.
Complete the set for your 1255 – 1455XL Series
- Operator Manual: Case IH 956, 1056 Operator Manual
- Operator Manual: International 955, 1055, 1255, 1455 Diesel Tractor Operator Manual (incl. Wiring)
What's Inside This Case IH 1255 – 1455XL Series Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Specifications | Service Diagnosis, Specifications, Longitudinal and Cross Section | |
| Basic Engine | Valve Lever Assembly, Camshaft and Idler Gear, Cylinder Head Valves and Guides, Manifolds, Crankshaft, Pistons Cylinder Sleeves and Connecting Rods, Balancer, Flywheel, Timing Gear Train, Valve Lash Adjustment, Engine Testing | |
| Lubrication and Cooling | Lubricating System, Oil Pump, Water Pump, Thermostat and Coolant Manifold, Fan and V-Belts | |
| Fuel System and Turbochargers | Injection Pump EP/VA-VE, Injection Nozzle Holder, Turbocharger | |
| Electric Equipment | Generators DC, Alternators, Troubleshooting, Starting Motor, Instruments | |
| Xl Control Centre | Range and Speed Shift Linkage, Speed Reducer Shift Linkage, Transmission Control | |
| Chassis | Wheels, Axles and Propeller Shaft, Brakes, Clutches, Steering, Hydraulics, Cab |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| DT-402 (1255, 1455) | ||
| Static Timing (Degrees BTDC) | 16 | p. 14 |
| 1255, 1455 | ||
| Nozzle opening pressure for checking excess fuel for starting (VA...CR pumps) | 15 MPa (2133 PSI) | p. 118 |
| 1255 XL | ||
| Dual Clutch Apply pressure, 1255 XL | 810-890 daN | p. 599 |
| 1455 XL | ||
| Dual Clutch Apply pressure, 1455 XL | 870-920 daN | p. 599 |
| All Models | ||
| Spool edge protrusion (Limit Stop Mechanism) | 6.5 mm | p. 529 |
| Rocker arms play (Limit Stop Mechanism) | 2-10 mm | p. 529 |
| Engine Valve Lash (engine hot) | 0.30 mm | p. 13 |
| Minimum Engine Oil Pressure (new, 90-100 °C oil temperature) | 0.30 MPa (44 PSI) | p. 13 |
| Cylinder Head Thickness (new) | 98.81 mm (3.8902 inch) | p. 29 |
| B-Fam. (743XL, 745XL, 844XL) | ||
| Pilot stream pressure at pressure oil filter, oil temperature + 50 °C, low idle speed (B-Fam. (743XL, 745XL, 844XL)) | 300-500 kPa | p. 487 |
| C-Fam. (955XL, 1055XL) | ||
| Pilot stream pressure at pressure oil filter, oil temperature + 50 °C, low idle speed (C-Fam. (955XL, 1055XL)) | 500-700 kPa | p. 487 |
| DT-402 | ||
| Max. Crankcase Pressure (DT-402, High idle, No Load, 2500 RPM) | 165 mm H2O (6.5 in H2O) | p. 15 |




















