This is the COMPLETE Technical Manual for the John Deere 6620, Sidehill 6620 & 7720 & 8820 Combines. It contains deep information about maintaining, assembly, disassembly and servicing your John Deere 6620, Sidehill 6620 & 7720 & 8820 Combines.
This manual contains information and data to this model. Has specs, diagrams, and actual real photo illustrations, color schemes. These technical manual is as good as it gets for Diagnosing, Repairing, and Maintenancing John Deere machinery.
Models Covered:
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John Deere 6620 Combine
John Deere Sidehill 6620 Combine
John Deere Sidehill 7720 Combine
John Deere Sidehill 8820 Combine
Technical Manual Contains:
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SECTION 10 – GENERAL
Group 00 – General Specifications
Group 05 – Diagnosing and Testing Procedures
Group 10 – Tune-Up and Adjustment
SECTION 20 – ENGINE REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Cylinder Head, Valves and Camshaft
Group 10 – Block, Liners, Pistons, and Rods
Group 15 – Crankshaft and Main Bearings
Group 20 – Lubrication System
Group 25 – Cooling System
SECTION 30 – FUEL AND AIR REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Air Intake System
Group 10 – Diesel Fuel System
Group 15 – Control Linkage
SECTION 40 – ELECTRICAL REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Harness Replacement
Group 10 – Charging Circuit Repair
Group 15 – Starting Circuit Repair
Group 20 – Lights, Instruments, and Accessories
SECTION 50 – POWER TRAIN REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Clutch
Group 10 – Transmission
Group 15 – Differential
Group 20 – Final Drive
Group 25 – Sundstrand Hydrostatic Drive
Group 26 – Eaton Hydrostatic Drive
Group 30 – 4-Wheel Drive (Planetary Gearing)
Group 31 – 4-Wheel Drive (Cam Lobe)
Group 35 – Posi-Torq Ground Drive
Group 40 – Tires and Wheels
SECTION 60 – STEERING / BRAKES REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Power Steering
Group 10 – Brakes
SECTION 70 – HYDRAULIC REPAIR
Group 00 – Specifications
Group 05 – Reservoir
Group 10 – Hydraulic Pump
Group 15 – Hydraulic Valves
Group 20 – Hydraulic Cylinders
Group 25 – Hydraulic Motors
Group 30 – Accumulator
SECTION 80 – SEPARATOR SHELL REPAIR
Group 00 – Specifications
Group 05 – Rear Hood
Group 10 – Cylinder Rear Cover
Group 15 – Separator Uprights
SECTION 90 – OPERATOR STATION REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Air Conditioning System
Group 10 – Air Intake (Pressurizer) System
Group 15 – Heating System
Group 20 – Personal Posture Seat
Group 25 – Miscellaneous Components
SECTION 100 – HEADER REPAIR
Group 00 – Specifications and Special Tools
Group 05 – 200 and 900 Series Cuttong Platforms
Group 10 – 40 Series Corn Heads
Group 15 – 50, 50A Series Row-Crop Heads
SECTION 110 – FEEDER HOUSE REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Feeder Conveyour Chain
Group 10 – Feeder Conveyour Drum
Group 15 – Feeder House Drives and Reverser Gear Case
Group 20 – Feeder House Drives (SideHill 6620 Combines) (-610300)
Group 25 – Feeder House Paddies, Stripper and Front Closure Sheets (SideHill 6620 Combines) (-403300)
Group 30 – Feeder Conveyour Chain, Upper Shaft, Paddle and Shaft, Conveyor Drum and Front Closure Sheets (SideHill 6620 Combines) (403301-)
SECTION 120 – SEPARATOR REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Cylinder, Concave, and Beater
Group 10 – POSI-TORQ Cylinder Drive
Group 12 – Dual-Range Cylinder Drive
Group 15 – Straw Waikers and Crankshafts
Group 20 – Straw Chopper and Straw Spreader
Group 25 – Shoe Augers, Fan, and Shoe Frame
Group 30 – Tallings Elevator and Augers
Group 35 – Lower Auger, Clean Grain Elevator, and Grain Tank Loading Auger
SECTION 130 – GRAIN TANK UNLOADING SYSTEM
Group 00 – Specifications
Group 05 – Grain Tank Cross Augers
Group 10 – Vertical Auger and Bevel Gears
Group 15 – Horizontal Auger and Gears
SECTION 140 – MAJOR DRIVES REPAIR
Group 00 – Specifications
Group 05 – Engine Powershaft
Group 10 – Primary Countershaft
Group 15 – Secondary Countershaft
SECTION 150 – SIDEHILL LEVELING SYSTEM REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Electrical Components
Group 10 – Hydraulic Components
SECTION 160 – AUTPMATIC HEADER HEIGHT CONTROL REPAIR
Group 00 – Specifications and Special Tools
Group 05 – Repair of Components
SECTION 220 – ENGINE OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 05 – System Operation
Group 10 – System Tests and Diagnosis
SECTION 230 – FUEL / AIR OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 05 – Air Intake System
Group 10 – Diesel Fuel System
Group 15 – Control Linkage
SECTION 240 – ELECTRICAL OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 05 – General Information and Diagnosis
Group 06 – Eletrical System Diagnosis
Group 10 – Charging Circuit
Group 15 – Starting Circuit
Group 20 – Lights, Instruments and Accessory Circuits
SECTION 250 – POWER TRAIN OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 05 – Clutch Diagnosis
Group 10 – Transmission Diagnosis
Group 15 – Final Drive Diagnosis
Group 20 – Hydrostatic Drive Tests and Diagnosis
Group 25 – 4-Wheel Drive Diagnosis (Planetary Gearing)
Group 26 – 4-Wheel Drive (Cam Lobe)
Group 30 – Posi-Torq Ground Drive Diagnosis
SECTION 260 – STEERING / BRAKES OPERATION AND TESTS
Group 05 – Power Steering
Group 10 – Brakes
SECTION 270 – HYDRAULIC OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 01 – Hydraulic System Operation
Group 05 – Hydraulic System Tests
Group 10 – Reservoir
Group 15 – Hydraulic Pumps
Group 20 – Hydraulic Valves
Group 25 – Hydraulic Cylinders
Group 30 – Hydraulic Motors
Group 35 – Accumulator
SECTION 290 – OPERATOR STATION OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 05 – Air Conditioning System
Group 10 – Heating System
SECTION 350 – SIDEHILL LEVELING SYSTEM OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 05 – General Information, Diagnosis, and Tests
Group 10 – Electrical System
Group 15 – Hydraulic System
SECTION 360 – AUTOMATIC HEADER HEIGHT CONTROL OPERATION AND TESTS
Group 00 – Specifications and Special Tools
Group 05 – General Information, Diagnosis, and Tests
Group 10 – Mechanical System
Group 15 – Electrical System
Group 20 – Hydraulic System
Group 25 – General Information, Diagnosis, and Tests – DIAL-A-MATIC
Group 30 – Mechanical System – DIAL-A-MATIC
Group 35 – Electrical System – DIAL-A-MATIC
Group 40 – Hydraulic System – DIAL-A-MATIC
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** Model Specification: John Deere 6620, Sidehill 6620 & 7720 & 8820 Combines
** Publication number: TM1202
** Language: English
** Total Pages: 1922
** File Format: PDF
** Requirements: Adobe PDF Reader
** Compatible: All Versions of Windows & Mac, Linux OS, Iphone, Ipad, Android etc…
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