Part of the John Deere Repair Manuals.
Looking for the factory teardown procedures for your crawler bulldozer? This 386-page John Deere 400G, TM-1412 repair manual PDF breaks down the entire transmission, undercarriage, and engine auxiliary systems. You get a massive section of exploded views showing exactly how the H-L-R clutch pack comes apart, plus step-by-step rebuilding instructions for the final drive and steering clutches. Open to the troubleshooting guides to diagnose track adjuster issues before you even pull a wrench. Adjust your track sag right the first time to 22.23-28.58 mm (7/8-1-1/8 in.) and verify your final drive pinion shaft preload matches factory numbers. Stop wasting time on guesswork when your dozer is sitting dead in the dirt. Download this bookmarked, searchable file to your tablet, find the exact spec, and get back to pushing dirt.
What's Inside This John Deere 400G Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | Introduction and Safety, General Specifications, Torque Values, Fuels and Lubrication, Inspection Procedures | |
| Tracks | Track Chain, Track Frame, Track Rollers, Front Idler, Track Adjuster, Sprockets | |
| Axles and Suspension Systems | Axle Shaft, Bearings, Reduction Gears, Final Drive Removal, Steering Clutch and Brake Band | |
| Transmission | Controls, Gears, Shafts, Bearings, H-L-R Clutch, Hydraulic System, Oil Filter Base Assembly | |
| Engine | Removal and Installation, Cylinder Head, Crankshaft, Pistons, Camshaft | |
| Engine Auxiliary Systems | Cold Weather Starting Aid (Starting Aid Solenoid and Nozzles), Cooling System (Fan Belt, Blower Fan, Radiator, Oil Cooler, Pump and Radiator Support) | |
| Clutch | Assemble High Range Clutch, Disassemble Low and Reverse Clutch, Assemble Low and Reverse Clutch, Assemble H-L-R Clutch Pack Assembly, Disassemble Clutch Accumulator Valve | |
| Steering System | Hydraulic System (Specifications, Steering Valve Spools, Remove and Install), Specifications, Remove and Install Steering Valve Spools, Check Diameter of Valve Spool | |
| Equipment Attaching | Fairlead (Winch Fairlead, Disassemble and Assemble), Disassemble and Assemble Winch Fairlead, Inspect Top Roller and Each Side Roller for Excessive Wear or Damage | |
| Electrical System | Batteries, Alternator, Regulator, Charging System, Lighting System, Wiring Harness and Switches, Instruments and Indicators, Motors and Actuators | |
| Frame, Chassis, or Supporting Structure | Frames, Side Frames Removal, Torque Specifications | |
| Operator's Station | Operator Enclosure, ROPS Removal, Seat and Seat Belt | |
| Sheet Metal and Styling | Hood and Engine Enclosure (Service Equipment and Tools, Specifications, Grille Housing, Remove and Install, Cowl), Service Equipment and Tools | |
| Winch | Essential Tools, Service Equipment and Tools, Other Materials, Specifications, Winch Repair, Remove Brake Band and Cylinder, Disassemble and Assemble Brake Cylinder | |
| Bulldozer | Blades, Controls Linkage, Frames, Hydraulic System, Lift and Angle Cylinders, Tilt Cylinders | |
| PTO or Winch Drive | Gears, Shafts and Bearings (Special Tools, RPM Powershaft and Winch Drive, Remove, Disassemble and Inspect, Assemble, Install), Service Equipment and Tools | |
| Ground Conditioning Tools | Teeth and Shanks, Frame, Hydraulic System (Ripper Cylinder), Section 09, Steering System (Hydraulic System, Steering Valve Spools) | |
| Dealer Fabricated Tools | Final Drive Positioning and Lifting Tool, Spring Tool, Alignment Stud, Special Wrench |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Track Adjuster | Adjustment | p. 3 |
| Final Drive | Repair | p. 3 |
| Power Shift Clutches | Repair | p. 3 |
| Steering Clutch | Repair | p. 3 |
| Track Sag | 22.23-28.58 mm (7/8-1-1/8 in.) | p. 58 |
| Final Drive Pinion Shaft Preload | 0.00-0.08 mm (0.00-0.003 in.) | p. 81 |
| Axle Rotation (New Bearings) Rolling Torque | 10-13 N·m (90-115 lb-in.) | p. 81 |
| Steering Clutch Housing-to-Brake Drum Cap Screws Torque | 40 N·m (30 lb-ft) | p. 56 |
| Steering Clutch Housing-to-Transmission Case Cap Screws 5/8 in. Torque | 210 N·m (155 lb-ft) | p. 82 |
| Clutch Accumulator Valve-to-Clutch Oil Manifold Cap Screws | 27 N·m (20 lb-ft) | p. 110 |
| Clutch Control Valve Spring Free Length (approximate) | 21.5 mm (.84 in.) | p. 112 |
| Transmission Oil Filter Assembly Spring Free Length (approximate) | 78 mm (3.06 in.) | p. 112 |
