This is the factory repair manual for the CLAAS Celtis 426, 436 and 446, the Renault-built utility tractors from the mid-2000s with the John Deere PowerTech DPS engine and B41 gearbox. It covers the machine end to end: engine and injection checking, LuK clutch and gearbox overhaul, rear axle, differential and service brakes, driven and undriven front axles, front and rear PTO, linkage and loader, the full hydraulic circuit with spool valves and hydrostatic steering, plus wiring, instrument panel and cab. These tractors are old enough now that dealers shrug at them, and a complete workshop manual for the Celtis line is genuinely hard to find. This is the book the dealer techs used, with the procedures and specifications laid out step by step.
What's Inside This CLAAS 426-446 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Front Equipment - PTO, Linkage, Loader & Brake | 3-58 | Front power take-off, Front linkage and loader, Pneumatic brake |
| Engine & Injection (DPS) | 59-364 | DPS diesel engine, Injection sheet checking, Fuel injection |
| Gearbox B41 & Clutch | 365-601 | B41 gearbox, LuK clutch, Mechanical vehicle drive |
| Rear Axle, PTO & Brakes | 602-741 | Rear axle and differential, Rear power take-off, Service brakes |
| Front Axle & Front PTO | 742-849 | Driven and undriven front axle, Front power take-off, Steering knuckles |
| Hydraulics, Spool Valves & Steering | 850-1180 | Main hydraulic circuit, Auxiliary spool valves, Hydrostatic steering |
| Electrical, Wiring & Cab | 1181-1529 | Electrical system and wiring, Instrument panel, Cab and controls |












