This John Deere Combines Service Technical Manual (TM4387) is your comprehensive guide to servicing and repairing a wide range of John Deere combines. From basic maintenance to in-depth repair procedures, this manual provides detailed instructions and illustrations to help you understand and work on your combine.

The manual covers a comprehensive range of models, including the John Deere 932, 942, 952, 955, 965-H, 968-H, 975, 975 Hydro/4, 985, 985 Hydro/4, 1065, 1068-H, 1072, 1075, 1075 Hydro/4, 1085, and 1085 Hydro/4 combines.

The information in the manual is organized into sections focusing on specific systems, allowing you to quickly find the information you need.

**The manual includes detailed information on:**

- **General Specifications and Tools** - This section covers vital specifications for your combine and lists the specialized tools needed for various repair tasks.
- **Engine Repair** - This comprehensive section provides step-by-step instructions for servicing and repairing engine components such as the cylinder head, valves, camshaft, cylinder block, pistons, connecting rods, crankshaft, main bearings, flywheel, lubrication system, cooling system, and timing gear train.
- **Fuel and Air System Repair** - This section covers the air intake system, fuel system, fuel filter with water trap, fuel injection pump, and fuel injection nozzles.
- **Electrical System** - This section covers diagnosing electrical malfunctions, electrical components, wiring diagrams, starting motor, alternator, electrical leveling control system, and modified electrical equipment found on combines from serial number 041201.
- **Power Train** - This section covers the variable ground speed drive, Posi-Torq ground drive, engine clutch and linkage, reverser clutch, hydrostatic drive, front axle, transmission and differential, final drives, rice drives, and track system.
- **Brakes and Rear Axle** - This section covers parking brakes, footbrakes, rear axle, and rear axle components for sidehill combines.
- **Hydraulic System** - This section covers diagnosing hydraulic system malfunctions, hydraulic symbols, pressure tests, hydraulic oil reservoir, filter, hydraulic pump, control valves, hydraulic cylinders, nitrogen accumulators, hydrostatic steering, hydraulic brakes, hydraulic clutch control, transmission brake, and hydraulic components for sidehill combines.
- **Miscellaneous** - This section covers bearings, shafts, belts, and chains.
- **Operator's Cab** - This section covers cab ventilation, air conditioning system, heater, and operator's seat.
- **Cutting Platform and Corn Head** - This section covers the cutting platform, knife drive, variable reel speed drive, corn head, and corn head gear case.
- **Feeder House** - This section covers the feeder drive, feeder house with integrated cutting platform, feeder house with quick-tach cutting platform, chain transmission, hydraulic reverser.
- **Separator and Cleaning Unit** - This section covers the separator drive, threshing cylinder, variable cylinder drive, concave, beater, cross shaker, straw walkers, cleaning shoe with sieves and fan.
- **Elevators, Grain Tank, and Grain Tank Unloading Augers** - This section covers the elevator and auger drives, clean grain auger and elevator, lower tailings auger, grain tank leveling auger, unloading auger, and outer unloading auger.
- **Special Equipment** - This section covers the straw chopper, straw spreader, and other special equipment.

This manual is a valuable resource for anyone who wants to maintain and service their John Deere combine, whether you're a professional mechanic or a do-it-yourself enthusiast.

The John Deere Combines Service Technical Manual (TM4387) is a comprehensive guide designed for technicians and mechanics working on a wide range of John Deere combine models. This manual serves as an essential resource, providing detailed information on the machinery's operation, maintenance, and troubleshooting. It's a vital tool for ensuring efficient and reliable performance of these complex agricultural machines.

The TM4387 covers a vast spectrum of topics, from basic operation and safety procedures to intricate diagnostics and repair techniques. It includes detailed illustrations, schematics, and step-by-step instructions to guide professionals through various tasks, including engine maintenance, transmission repair, hydraulic system adjustments, and electrical system troubleshooting. The manual also incorporates troubleshooting charts, diagnostic codes, and component specifications, empowering technicians to identify and resolve issues with precision. Moreover, it emphasizes safety practices throughout, ensuring technicians work safely and efficiently while maintaining the combine's optimal performance. The John Deere Combines Service Technical Manual is a valuable asset for anyone involved in the operation, maintenance, or repair of John Deere combines, enhancing their knowledge and skills for optimal productivity.