This comprehensive Technical Manual provides in-depth information for maintaining, assembling, disassembling, and servicing John Deere 925, 935, 945, 955, 965, and 975 Combines. It's an essential resource for anyone looking to diagnose, repair, and maintain their John Deere machinery.

The manual includes detailed specifications, diagrams, and real photo illustrations to guide you through every step of the process. It covers a wide range of topics, including:

* **General Information:** Specifications, pre-delivery, delivery, and after-sales inspections, lubrication and periodic service, engine and combine tune-up, combine separation.
* **Engine:** General information, diagnosing malfunctions, cylinder head, camshaft and balancer shafts, cylinder block, liners, pistons and connecting rods, crankshaft, main bearings and flywheel, timing gear train, engine lubricating system, engine cooling system, air intake system, speed control linkage.
* **Fuel System:** Diagnosing malfunctions, fuel tank, water trap, transfer pump and fuel filter, Roto Diesel fuel injection pump, Roosa Master fuel injection pump (DM 4 Type), Roosa Master fuel injection nozzles, cold weather starting aids.
* **Electrical System:** Diagnosing malfunctions, components and wiring diagram, starting motor, alternator.
* **Power Train:** Engine clutch and clutch linkage (Combines 925, 935, 945), engine clutch and clutch linkage (Combine 955), engine clutch (Combines 965 and 975), reverser clutch, control and linkage (Combines 965 and 975), front axle (Combines 925, 935, 945), front axle (Combines 955, 965, and 975), track system (Combines 965 and 975), separator drive, variable drives, POSI TORQ ground drive (Combine 975).
* **Brakes and Rear Axle:** Parking brake (Combines 925, 935, 945), parking brake (Combines 955, 965, 975), footbrakes, rear axle, V-support for wheel rear axle (Combine 975).
* **Hydraulic System:** General information, diagnosing malfunctions, pressure tests, hydraulic oil reservoir, filter, suction and pressure lines, hydraulic pump and flow driver, tandem (dual-gear) hydraulic pump (Combines 965 and 975), single and three-spool control valves (Combines 925 to 955), seven-spool control valve (Combines 965 and 975), hydraulic cylinders, nitrogen accumulators, hydrostatic steering, hydraulic brakes, hydraulic clutch control (Combines 965 and 975).
* **Cutting Platform and Corn Head:** General information, diagnosing malfunctions, cutting platform and knife drive, corn head, corn head gear case.
* **Feeder House:** General information, diagnosing malfunctions, feeder house.
* **Separator and Cleaning Unit:** General information, diagnosing malfunctions, threshing cylinder, concave, beater, cross shaker, straw walkers, cleaning shoe with sieves and fan.
* **Elevators, Grain Tank, and Grain Tank Unloading Augers:** General information, diagnosing malfunctions, clean grain auger and elevator, lower tailings auger, elevator and upper auger, grain tank leveling auger, unloading augers, outer unloading auger and housing.

This manual is a valuable resource for anyone who owns or operates a John Deere 925, 935, 945, 955, 965, or 975 Combine. With its comprehensive coverage and detailed illustrations, it makes troubleshooting and maintenance tasks easier and more efficient.

The John Deere 925, 935, 945, 955, 965, and 975 combines represent a powerful and versatile line of agricultural machinery designed for efficient and high-capacity harvesting. These combines, introduced in the late 1990s and early 2000s, were known for their robust construction, advanced technology, and adaptability to a wide range of crops and conditions. Each model within the series offered distinct features and capabilities catering to specific farm sizes and harvesting requirements. The 925, the smallest in the lineup, was ideal for smaller farms, while the 975, with its increased engine power and larger capacity, was well-suited for large-scale operations.

These combines incorporated innovative technologies to enhance harvesting efficiency and operator comfort. The John Deere PowerTech engine provided reliable power with fuel efficiency, while the advanced header systems, such as the 30-foot Draper header, ensured smooth and clean harvesting. Features like the Active Terrain Adjustment (ATA) system automatically adjusted the combine's height for optimal ground clearance and header performance, minimizing crop losses and ensuring consistent cutting. The operator cab offered a comfortable environment with excellent visibility and intuitive control systems. The "GreenStar" technology, with its advanced guidance and yield monitoring systems, further improved productivity and enabled precise data collection for informed decision-making. The John Deere 925 to 975 combines offered a comprehensive solution for farmers seeking reliable and efficient harvesting machines suited for diverse agricultural settings.