Part of the John Deere Repair Manuals.
This is the complete John Deere factory repair manual for the 6103, 6203, 6403 and 6603 tractors. Across 1,404 pages it covers every major system on the 6003 Series: engine removal, teardown and reassembly for both 4-cylinder and 6-cylinder engines, the full power train from clutch and transaxle through differential and final drives, front axle and brake repair, hydraulic pump and Rockshaft service with the selective control valve, and the complete electrical system with wiring harness routing. Cab and ROPS operator station sections cover air conditioning and heating. It is the same factory information a John Deere dealer technician works from, with all torque values, capacities and test pressures called out so a repair is done to spec the first time.
What's Inside This John Deere 6103, 6203, 6403, 6603 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | Safety, Specifications, Fuel and Lubricants, Serial Number Locations | |
| Engine Repair | Engine, Cooling System | |
| Fuel and Air Repair | Fuel System, Speed Control Linkage, Air Intake System | |
| Electrical Repair | Battery, Starter and Alternator, Harness and Connector Repair, Wiring Harness Routing, Electrical System Components, Auxiliary Lighting, Fuses and Relays, Lighting | |
| Power Train | Towing, Component Removal, PTO, Clutch, Clutch Housing, Transaxle, Differential, Final Drives, MFWD Drop Gearbox | |
| Steering and Brake Repair | Steering Repair, Front Axle, Brake Repair | |
| Hydraulic Repair | Hydraulic Pump and Filter, Rockshaft, Lubrication System, Selective Control Valve (SCV) | |
| Miscellaneous Repair | Hood and Shields, 3-Point Hitch, Wheels, Front Support | |
| Operator Station Repair | Seat and Support, ROPS, Operator Platform | |
| Cab Operator Station Repair | Component Removal and Installation, SCV Cable Adjustment, Air Conditioning System, Heating System, Seat | |
| 6003 Series Tool Kit | Essential Tool Reference for 6003 Series Service | |
| Special Tools | Dealer-Fabricated Special Tools |
Documents This Manual Refers To
The manufacturer cites these publications by number. We carry them:
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All models | ||
| Transmission and Hydraulic Oil Capacity | 58 L (15.3 gal.) | |
| Radiator Capacity | 8.9 L (9.4 qt) | |
| Cooling System Pressure Test | 103 kPa (1 bar / 15 psi) | |
| 6103, 6203 | ||
| Engine Oil Pan Capacity (4-Cylinder) | 12 L (13 qt) | |
| 6403, 6603 | ||
| Engine Oil Pan Capacity (6-Cylinder) | 19 L (20 qt) | |
| Engine Assembly | ||
| Flywheel Housing-to-Clutch Housing Cap Screws (A) Torque | 610 N.m (450 lb-ft) | |
| Fan Drive Belt | ||
| Fan Drive Belt New Belt Tension | 535 - 715 N (120 - 160 lb-force) | |
| Engine Oil Pan | ||
| Oil Pan Drain Plug with O-Ring Torque | 50 N.m (37 lb-ft) | |
