Tractor Segment:
Medium-duty agricultural tractor.
Target User:
Farmers, agricultural contractors, tractor restorers, and maintenance technicians.
Key Competitors Era:
John Deere 3020/4020, Ford 5000/7000, Massey Ferguson 165/175, Allis-Chalmers 180/190.
Tractor Attributes:
Robust construction, reliable IH engines, versatile hydraulics, available with various transmissions (including powershift options).
Manual Value Proposition:
Essential for maintaining peak performance, diagnosing issues, and extending the service life of the IH 806 tractor.
Coverage Statement:
Comprehensive service, maintenance, and troubleshooting for IH International Harvester 806 Tractor.
Page Count:
Varies by specific edition, but typically extensive for this era of tractor.
Manual Type:
Workshop Repair Service Manual
Engine Systems:
Engine overhaul, cooling system, lubrication, fuel system, intake and exhaust, ignition system (if applicable), starting system, charging system.
Transmission Systems:
Clutch, gearbox (speed transmission), power take-off (PTO) drive, differential, final drives, hydraulic powershift transmission (if equipped).
Hydraulic Systems:
Hydraulic pump, control valves, cylinders, lift arms, remote hydraulic outlets, hydraulic fluid specifications.
Steering Systems:
Manual steering, power steering components and troubleshooting.
Braking Systems:
Brake band adjustment, brake system maintenance and repair.
Electrical Systems:
Wiring diagrams, starter motor, alternator, battery, lighting, instrument panel.
Chassis And Body:
Frame, drawbar, fenders, operator platform, dashboard, hood.
Maintenance Procedures:
Lubrication schedules, filter replacement, fluid checks and changes, belt adjustments, battery maintenance.
Troubleshooting Guides:
Systematic diagnostics for common performance issues, starting problems, hydraulic malfunctions, transmission faults.
Repair Procedures:
Step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly.
Overhaul Instructions:
Detailed guidance for complete engine rebuilds, transmission overhauls, and hydraulic system component replacement.
Adjustments:
Clutch adjustment, brake adjustment, PTO engagement, governor adjustments.
Depth Of Coverage:
Comprehensive; suitable for professional mechanics and experienced DIY technicians.
Diagnostic Information:
Includes specifications for testing components, identifying wear limits, and diagnosing faults.
Schematics And Diagrams:
Contains hydraulic schematics, electrical wiring diagrams, and exploded view diagrams for parts identification.
Engine Model Options:
Typically featured IH DT-360 (diesel) and gasoline variants.
Engine Type:
Vertical, four-stroke, direct injection diesel (DT-360).
Displacement:
360 cubic inches (approx. 5.9 liters) for DT-360.
Bore X Stroke:
Specifics vary by exact engine build, but typical for the era.
Horsepower Rating:
Approx. 75-90 PTO HP (varies by configuration and rating method).
Torque Rating:
Significant torque output, crucial for pulling power.
Fuel Type:
Diesel (for DT-360), Gasoline.
Injection System:
Roosamaster or similar rotary injection pump (for diesel).
Cooling Method:
Water-cooled.
Oil Type:
Refer to manual for specific API service classifications (e.g., CD or equivalent for diesel).
Oil Capacity:
Refer to manual for exact capacity.
Transmission Type Standard:
2WD (Two-Wheel Drive) standard configuration.
Transmission Type Optional:
Optional 4WD (Four-Wheel Drive) available.
Gear Options:
Typically offered with a 5-speed or 10-speed transmission (e.g., with a Lo-Range or Hi-Lo gearset).
Powershift Option:
Optional Power-Shift transmission (e.g., IH's own powershift unit) for on-the-go shifting.
Pto Options:
Live PTO and/or transmission-driven PTO options.
Transmission Fluid Type:
Refer to manual for specific IH specification fluids (e.g., IH Hy-Trans or equivalent).
Wheelbase:
Varies by configuration, typically around 90-95 inches.
Overall Length:
Refer to specific model specs.
Overall Width:
Varies based on tire size and tread settings.
Operating Weight:
Approx. 5,000 - 7,000 lbs (unballasted).
Safety Standards:
Designed to meet agricultural safety standards of the era.
Safety Features:
Operator presence lever, safety shut-offs, reliable braking system.
Operator Protection:
Fenders, operator platform; ROPS (Roll-Over Protective Structure) might be optional or a field installation.
Infotainment System:
Basic instrumentation: ammeter, oil pressure gauge, temperature gauge, tachometer, speedometer.
Driver Assistance Features:
Power steering (optional/standard on some models), independent PTO engagement.
Connectivity Features:
N/A (No electronic connectivity features).
Engine Oil Change:
Refer to manual; typically 100 hours for older diesel engines.
Hydraulic Fluid Change:
Refer to manual; typically annually or based on operating hours.
Air Filter Service:
Check regularly, service as needed based on operating conditions (dusty environments require more frequent checks).
Engine Oil Specification:
Viscosity grade (e.g., SAE 30W or 15W-40) and API service classification (e.g., CD, CE, or equivalent).
Coolant Type:
Ethylene glycol based coolant with corrosion inhibitors, 50/50 mix with distilled water.
Hydraulic Fluid Specification:
Refer to manual for IH Hy-Trans or approved equivalents; critical for transmission and hydraulic systems.
Common Wear Items:
Clutch wear, PTO clutch packs, hydraulic pump wear, seal leaks, injector pump timing issues, starter motor reliability.
Troubleshooting Focus:
Hydraulic system performance (slow lift, loss of pressure), transmission engagement issues, engine power loss, starting difficulties.
Manufacturer History:
International Harvester was a prominent American manufacturer of agricultural machinery, construction equipment, and trucks.
806 Production Era:
Produced from approximately 1963 to 1967.
Predecessor Model:
Successor to models like the 560 and predecessor to the 856.
Manufacturing Location:
Primarily manufactured in the United States.
