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Part of the John Deere Repair Manuals.
This 906-page John Deere 450D/455D Technical Manual (OEM #TM1291) covers both the Crawler Bulldozer and Crawler Loader, walking you through tracks, transmission, engine, winch, loader, bulldozer, and backhoe systems from the ground up. Inside you'll find complete wiring diagrams for the alternator and instrument circuits, hydraulic schematics for the loader and bulldozer systems, and a full troubleshooting section covering engine, electrical, and power train faults. Set track adjusting cylinder yoke torque to 115 ± 11 N·m and check front idler flange height against the 19.3 mm new-part spec before it wears past the 24.4 mm limit. No more tearing into a final drive on guesswork or chasing a knocking engine with secondhand numbers. This PDF is bookmarked by system, so you jump straight from Tracks to Winch to Backhoe without scrolling through 906 pages, and it opens fine on a tablet propped on the fender while you work.
What's Inside This John Deere 450D, 455D Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Safety | 7-14 | ROPS, Coolant Heater, Starting Fluid, High-Pressure Fluids, Fire Hazards, Protective Clothing |
| General Information | 15-30 | General Specifications, Cap Screw Torque Values, Fuels and Lubricants |
| Tracks | 31-72 | Track Systems |
| Axle and Suspension Systems | 73-100 | Axle Shaft, Bearing and Reduction Gears |
| Transmission | 101-186 | Controls, Gears, Shafts, Bearings and H-L-R Clutch |
| Engine | 187-328 | Removal and Installation, Crankshaft and Main Bearings, Camshaft and Valve Actuating Means, Connecting Rods and Pistons, Cylinder Block, Oiling System, Cylinder Head and Valves |
| Engine Auxiliary Systems | 329-346 | Cold Weather Starting Aids, Cooling Systems, Speed Control, External Fuel Supply Systems |
| Clutch | 347-362 | Controls, Elements |
| Steering System | 363-366 | Hydralic System |
| Equipment Attaching | 367-370 | Drawbar |
| Electrical System | 371-390 | Batteries, Support and Cables, Alternator, Regulator and Charging System Wiring, Wiring Harness and Switches, Instruments and Indicators |
| Frames, Chassis, or Supporting Structure | 391-400 | Frames, Frame Bottom Guards, Chassis Weights |
| Operator's Station | 401-410 | Operator Enclosure |
| Sheet Metal and Styling | 411-420 | Hood or Engine Enclosure, Grille and Grille Housing |
| Winch | 421-476 | Controls Linkage, Winch Drive and Clutches, Hydraulic System |
| Loader | 477-524 | Buckets, Forks, Controls Linkage, Frames, Hydraulic System |
| Bulldozers | 525-572 | Blades, Controls Linkage, Frames, Hydraulic System |
| Backhoe 9300 (Loader-Backhoe) | 573-634 | 9300 Backhoe Buckets, Teeth, Shanks and Side Cutters, Boom and Dipperstick, Swing Frame, Stabilizers, Control Linkage, Backhoe Hydraulic Cylinders and Valve |
| Backhoe 93 (Standard) | 635-694 | 93 Backhoe Buckets and Teeth, Boom and Crowd Cylinders, Swing Mechanism, Stabilizer Cylinders, Control Linkage, Backhoe Hydraulic System and Valve |
| Arch or Boom, or Cranes | 695-698 | Arch Frame |
| PTO or Winch Drive | 699-704 | Controls Linkage, Winch Drive and Clutches, Winch Hydraulic System |
| Ground Conditioning Tool | 705-720 | Teeth Shanks, Frame, Hydraulic System |
| System Testing (Diagnostics) | 721-890 | General Information and Operational Checkout Procedure, Engine Tests, Electrical System Tests, Power Train Tests (H-L-R Transmission, Clutch, Final Drives), Hydraulic System Tests, Miscellaneous Component Tests |
| Special Tools | 891-906 | JT38006 Liner Holding Fixture, JT38007 Track Roller Installation Tool, JT38014 Final Drive Housing Lifting Tool, JT38015 Flanged Axle Shaft Removing Tool |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine oil drain interval reduction if fuel sulfur content exceeds 0.5 percent | 50 percent (to 100 hours) | p. 23 |
| Track adjusting cylinder yoke to idler bracket | 115 ± 11 N·m (85 ± 8 lb-ft) | p. 34 |
| Front idler flange height (new) | 19.3 mm (0.76 in.) | p. 35 |
| Final drive inner bearing cover cap screws | 67.8 ± 6.78 N-m (50 ± 5 lb-ft) | p. 75 |
| Final drive housing to steering clutch housing cap screws | 325.44 ± 32.54 N·m (240 ± 24 lb-ft) | p. 75 |
| Yoke clearance between lever and neutral stop | 1.5 mm (0.60 in.) | p. 108 |
| Countershaft Bearing Quill Cap Screws Torque | 47 ± 4.7 N·m (35 ± 3.5 lb-ft) | p. 110 |
| Winch to steering clutch housing | 203 N·m (150 lb-ft) | p. 426 |
| Upper carrier roller assembly support attaching torque | 115 N·m | p. 34 |
| Camshaft endplay (new, max) | 0.23 mm | p. 212 |
