Factory Technical Manual For John Deere Combine. Manual Contains Illustrations, Instructions, Diagrams For Step By Step Remove And Install, Assembly And Disassembly, Service, Inspection, Repair, Troubleshooting, Tune-Ups.
Format: PDF
Language: English
Pages: 1922
Number: TM1202 (January 1988)
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
John Deere Combine
6620
6620 Sidehill
7720
8820
Contents
-GENERAL
General Specifications
Diagnosing and Testing Procedures
Tune-Up and Adjustment
-ENGINE REPAIR
Specifications and Special Tools
Cylinder Head. Valves and Camshaft
Block, Liners, Pistons, and Rods
Crankshaft and Main Bearings
Lubrication System
Cooling System
-FUEL AND AIR REPAIR
Specifications and Special Tools
Air Intake System
Diesel Fuel Sy3tem
Control Linkage
-ELECTRICAL REPAIR
Specifications and Special Tools
Harness Replacement
Charging Circuit Repair
Starting Circuit Repair
Lights, Instruments, and Accessories
-POWER TRAIN REPAIR
Specifications and Special Tools
Clutch
Transmission
Differential
Final Drive
Sundstrand Hydrostatic Drive
Eaton Hydrostatic Drive
4-Wheel Drive (Planetary Gearing)
4-Wheel Drive (Cam Lobe)
Posi-Torq Ground Drive
Tires and Wheels
STEERING/BRAKES REPAIR
Specifications and Special Tools
Power Steering
Brakes
-HYDRAULIC REPAIR
Specifications
Reservoir
Hydraulic Pump
Hydraulic Valves
Hydraulic Cylinders
Hydraulic Motors
Accumulator
-SEPARATOR SHELL REPAIR
Specifications
Rear Hood
Cylinder Rear Cover
Separator Uprights
-OPERATOR STATION REPAIR
Specifications and Special Tools
Air Conditioning System
Air Intake (Pressurizer) System
Heating System
Personal Posture Seat
Miscellaneous Components
-HEADER REPAIR
Specifications and Special Tools
200 and 900 Series Cutting Platforms
40 Series Corn Heads
50, 50A Series Row-Crop Heads
– FEEDER HOUSE REPAIR
Specifications and Special Tools
Feeder Conveyor Chain
Feeder Conveyor Drum
Feeder House Drives and Reverser Gear Case
Feeder House Drives (SideHill 6620 Combines) (-610300)
Feeder House Paddles, Stripper and Front Closure Sheets (SideHill 6620 Combines [-403300))
Feeder Conveyor Chain, upper Shaft,
Paddle and Shaft, Conveyor Drum and Front Closure Sheets (SideHill 6620 Combines [403301-))
-SEPARATOR REPAIR
Specifications and Special Tools
Cylinder, Concave, and Beater
POSI-TORQ Cylinder Drive
Dual-Range Cylinder Drive
Straw Walkers and Crankshafts
Straw Chopper and Straw Spreader
Shoe Augers, Fan, and Shoe Frame
Tailings Elevator and Augers
Lower Auger, Clean Grain Elevator, and
Grain Tank Loading Auger
-GRAIN TANK UNLOADING SYSTEM
Specifications
Grain Tank Cross Augers
Vertical Auger and Bevel Gears
Horizontal Auger and Gearcase
-MAJOR DRIVES REPAIR
Specifications
Engine Powershaft
Primary Countershaft
Secondary Countershaft
-SIDEHILL LEVELING
SYSTEM REPAIR
Specifications and Special Tools
Electrical Components
Hydraulic Components
-AUTOMATIC HEADER HEIGHT CONTROL REPAIR
Specifications and Special Tools
Repair of Components
-ENGINE OPERATION AND TESTS
Specifications and Special Tools
System Operation
System Tests and Diagnosis
-FUEL/AIR OPERATION AND TESTS
Specifications and Special Tools
Air Intake System
Diesel Fuel System
Control Linkage
-ELECTRICAL OPERATION AND TESTS
Specifications and Special Tools
General Information and Diagnosis
Electrical System Diagnosis
Charging Circuit
Starting Circuit
Lights, Instruments and Accessory Circuits
-POWER TRAIN OPERATION AND TESTS
Specifications and Special Tools
Clutch Diagnosis
Transmission Diagnosis
Final Drive Diagnosis
Hydrostatic Drive Tests and Diagnosis
4-Wheel Drive Diagnosis (Planetary
Gearing)
4-Wheel Drive (Cam Lobe)
Posi-Torq Ground Drive Diagnosis
-STEERING/BRAKES OPERATION AND TESTS
Power Steering
Brakes
-HYDRAULIC OPERATION AND TESTS
Specifications and Special Tools
Hydraulic System Operation
Hydraulic System Tests
Reservoir
Hydraulic Pumps
Hydraulic Valves
Hydraulic Cylinders
Hydraulic Motors
Accumulator
-OPERATOR STATION OPERATION AND TESTS
Specifications and Special Tools
Air Conditioning System
Heating System
-SIDEHILL LEVELING SYSTEM OPERATION AND TESTS
Specifications and Special Tools
General Information, Diagnosis, and
Tests
Electrical System
Hydraulic System
-AUTOMATIC HEADER HEIGHT CONTROL OPERATION AND TESTS
Specifications and Special Tools
General Information, Diagnosis, and Tests
Mechanical System
Electrical System
Hydraulic System
General Information, Diagnosis, and Tests – DIAL-A-MATIC
Mechanical System – DIAL-A-MATIC
Electrical System – DIAL-A-MATIC
Hydraulic System – DIAL-A-MATIC
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