Part of the John Deere Repair Manuals.
Whether you are rebuilding the Syncro-Range transmission or overhauling the fuel injection system, this 263-page John Deere 4320 technical manual pdf (OEM #TM1029) breaks down every factory repair procedure for your 4320 Tractor. Inside, you get complete electrical wiring diagrams, full hydraulic schematics for the rockshaft and selective control valves, and step-by-step troubleshooting charts. Open directly to the engine section to find clear teardown instructions for the cylinder block, pistons, and main bearings. Verify your main hydraulic pump is hitting the correct numbers by setting the standby pressure to exactly 2250 psi before adjusting the stroke control valve. Quit trusting random internet guesses when your equipment sits dead in the dirt. Download this bookmarked file, pull it up on your shop tablet, and start turning wrenches.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-26 | Leakage Check, Time Cycle Check, Hydraulic Tests, Pressure Tests, Diagnosis Malfunctions, Specifications |
| Engine | 27-58 | General Information, Diagnosis, Cylinder Head, Crankshaft, Lubrication System, Cooling System |
| Fuel System | 59-70 | Diagnosing Malfunctions, Fuel Injection System, Fuel Pump, Air Intake System, Turbocharger |
| Electrical System | 71-122 | Wiring Diagrams, Charging Circuit, Starting Circuit, Lighting Circuits, Battery Connections, Circuit Breakers |
| Power Train | 123-174 | Clutches, Syncro-Range Transmission, Differential, Final Drive, PTO, Power Front-Wheel Drive |
| Steering and Brakes | 175-176 | General Information, Power Steering, Power Brakes |
| Hydraulic System | 177-256 | General Information, System Testing, Main Hydraulic Pump, Power Steering, Power Brakes, Rockshaft, Selective Control Valve |
| Miscellaneous | 257-263 | Contents of This Section, Group 5 - Conventional Front Axle (Removal, Repair, Installation, Specifications, Torques for Hardware, Special Tool) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Standby pressure | 2250 psi | p. 6 |
| Stroke control valve spring compressed | 3.30 in. | p. 198 |
| Engine Displacement | 404 cu. in. | p. 5 |
| Fuel Tank Capacity | 44 U.S. gals. | p. 5 |
| Engine Oil Capacity (with filter change) | 16 U.S. qts. | p. 5 |
| Cylinder Head to Block Torque | 130±5 ft-lbs | p. 38 |
| Crankshaft End Play | 0.0025 to 0.0085 in. | p. 45 |
| Engine Oil Pressure (1900 rpm) | 40 to 50 psi | p. 54 |
