John Deere 401B Tractor and Loader Technical Manual (TM1091)
Table of Content (Technical Manual- TM1091)
Section 10 – General specifications and services.
Sections 20 through 60 – Removal, repair, testing (components removed), installation, and adjustment.
Section 70 – Detailed explanation of system operation, diagnosis, visual inspection, testing, and adjustments.
Specifications grouped and illustrated at the end of each section.
Inside rear cover—Index.
John Deere 401B Tractor & Loader Technical Manual (TM1091) – Complete Repair Guide
🔧 What’s Included in the John Deere 401B Technical Manual (TM1091)?
✅ Comprehensive Coverage– Step-by-step repair instructions for the John Deere 401B Tractor & Loader
✅ Detailed Diagrams– Exploded views, hydraulic schematics, and electrical wiring diagrams
✅ Specifications & Torque Values – Engine, transmission, hydraulics, and brake system specs
✅ Troubleshooting Guides – Diagnose and fix common 401B Tractor & Loader issues
✅ Maintenance Schedules– Lubrication, fluid capacities, and service intervals
📌 Key Sections in the John Deere 401B Manual (TM1091)
1. Engine Repair & Specifications
401B Engine Overhaul– Pistons, valves, timing, fuel injection
Cooling System– Radiator, thermostat, water pump
Lubrication System– Oil pump, filters, pressure checks
2. Transmission & Drivetrain
Clutch Adjustment & Replacement
Gearbox & Differential Service
Final Drive & Axle Maintenance
3. Hydraulic System & Loader Operation
Hydraulic Pump Repair – Pressure Testing & Adjustments
Loader Valve & Cylinder Rebuild
Hoses & Fittings Replacement
4. Electrical System & Wiring Diagrams
Starter & Alternator Testing
Fuse Box & Relay Locations
Troubleshooting Electrical Faults
5. Brakes & Steering
Brake Adjustment & Pad Replacement
Steering Gearbox & Linkage Repair
