This comprehensive technical manual provides in-depth information on maintaining, assembling, disassembling, and servicing John Deere 6600, Side Hill 6600, and 7700 Combines. It offers detailed specifications, diagrams, and high-quality photo illustrations in color, making it an invaluable resource for diagnosis, repair, and maintenance.

The manual is organized into sections covering various aspects of the combine, including:

* **General Information:** This section covers general specifications, pre-delivery and delivery service information, after-sale inspection procedures, lubrication guidelines, diagnostic and testing methods, and tune-up and adjustment instructions.
* **Engines:** Detailed information on engine diagnosis, removal, cylinder head, valves, camshaft, cylinder block, liners, pistons, rods, crankshaft, main bearings, flywheel, lubrication system, cooling system, governor, speed control linkage, and specifications for special tools.
* **Fuel and Air Repair:** Covers the air intake system, fuel tank, electric fuel pump, diesel fuel system, gasoline fuel system, and specifications for special tools.
* **Electrical System:** Contains general information, wiring diagrams, diagnosis, Motorola charging circuit, Delcotron charging circuit, Delco-Remy starting circuit, John Deere starting circuit, ignition circuit, lights, instruments, accessory circuits, low shaft speed monitor system, harness replacement, and specifications for special tools.
* **Power Train:** Provides information on clutch, transmission, differential, final drive, hydrostatic drive, power rear wheel drive, Posi-Torq ground drive, tires and wheels, crawler tracks, and specifications for special tools.
* **Power Steering and Brakes:** Covers the power steering system, brakes, and specifications.
* **Hydraulic System:** Includes information on hydraulic system operation, tests, reservoir, hydraulic pumps, valves, cylinders, motors, oil lines, hoses, and specifications for special tools.
* **Operators Cab:** Covers the pressurizer system, air conditioning system, heating system, personal posture seat, miscellaneous components, and specifications for special tools.
* **Headers:** Offers information on 200 series cutting platforms, Quik-Tatch cutting platforms, 40 series corn heads, row-crop heads, and specifications for special tools.
* **Feeder House:** Provides information on feeder conveyor chain, drum, paddies and stripper (Side Hill 6600), variable speed drives, lower and upper shafts, and specifications.
* **Separator:** Covers the cylinder, cylinder cover, concave, beater, cylinder drives, straw walkers, crankshafts, straw chopper, spreader, rear hood, shoe supply augers, cleaning fan, sleeve frame, tailings elevator, augers, clean grain elevator, lower auger, grain tank loading auger, separator uprights, and specifications for special tools.
* **Grain Tank and Unloading Augers:** Covers grain tank auxiliary unloading augers and drive, inner and outer unloading augers, grain tank, and specifications.
* **Major Drives:** Details information on engine powershaft, primary and secondary countershafts, separator control lever, and specifications.
* **Electro-Hydraulic Systems:** Includes general information, diagnosis and tests for SideHill 6600 leveling system, electrical and hydraulic components for the SideHill 6600 leveling system, general information, diagnosis, and tests for automatic header height control, mechanical, electrical, and hydraulic systems for automatic header height control, unloading auger hydraulic swing and automatic latching system, and specifications for special tools.
* **Machine Reconditioning:** Offers instructions on cleaning, painting, decal installation, shielding, and specifications.

This manual is thoroughly indexed and searchable, making it easy to find the specific information you need.

The John Deere 6600, 6600 Side Hill, and 7700 combines were powerful and versatile harvesting machines produced by John Deere in the 1970s and early 1980s. These models were known for their robust construction, reliable performance, and innovative features that enhanced harvesting efficiency. The 6600 series combines were initially introduced in the late 1970s as successors to the popular 55 series. They offered increased engine power, larger grain tanks, and improved operator comfort. The 6600 Side Hill model was specifically designed for harvesting on sloped terrains, featuring a unique side-hill leveling system that kept the combine stable and level even on steep inclines. The 7700, introduced later in the series, further enhanced the 6600 platform, boasting an even more powerful engine, improved threshing and separating systems, and a larger grain tank capacity.

These combines were equipped with a range of engine options, including John Deere's own Turbocharged Diesel engines, which provided ample power for handling various crops and harvesting conditions. They featured advanced threshing and separating systems, designed to effectively handle a wide variety of grains, including wheat, barley, oats, soybeans, and corn. The combines also incorporated innovative features like automatic header height control, which adjusted the header height based on the crop's density, optimizing harvesting performance. Moreover, John Deere focused on operator comfort and convenience in these models, offering features such as air-conditioned cabs, adjustable seats, and ergonomic controls, making long harvesting days more manageable for the operator. The John Deere 6600, 6600 Side Hill, and 7700 combines played a significant role in the agricultural industry during their production run, contributing to efficient and effective harvesting practices for farmers across the globe.