Target Audience:
Owners and technicians of International Harvester 786 and 886 tractors seeking detailed repair, maintenance, and diagnostic information.
Value Proposition:
Offers a cost-effective alternative to expensive OEM manuals or dealership service, providing the same level of factory detail for DIY repairs and maintenance, saving significant costs in the long run.
Manual Features:
Hundreds of pages, hundreds of photos and illustrations, detailed substeps, notes, cautions, warnings, numbered instructions, bold figure numbers, enlarged insets, numbered table of contents, electrical troubleshooting with wiring diagrams, PDF format for immediate access.
Illustrative Content:
Hundreds of photos and illustrations, including enlarged insets, to visually guide the user through complex procedures.
Systems:
General Information, Specifications, Engine, Cooling System, Fuel System, Power Train, Front Axle, Clutch, Differential Lock, Electrical System, Brakes, Fenders, Fuel Tank & Platform, Final Drive, Front System, Front-Wheel Drive (if applicable), Hydraulic System, Main Drive Bevel Gears and Differential, Park Brake, Power Steering System, Power Take-Off (PTO), Rear Axle, Steering Gear, Transmission
Engine Overhaul Procedures:
Detailed procedures for engine disassembly, inspection, repair, and reassembly, including piston removal, bearing replacement, cylinder head work, and timing adjustments.
Cooling System Service:
Radiator, fan, water pump, thermostat inspection and replacement procedures, coolant type and capacity.
Fuel System Maintenance:
Fuel injection pump, injectors, fuel filters, bleeding procedures, troubleshooting fuel delivery issues.
Powertrain Diagnostics:
Covers the complete drive train from clutch to rear axle, including troubleshooting shifting problems, power take-off engagement, and differential operation.
Electrical System Diagrams:
Detailed wiring diagrams, troubleshooting guides for starting, charging, lighting, and accessory systems, including component identification and testing.
Hydraulic System Repair:
Procedures for repairing the hydraulic pump, control valves, cylinders, hoses, and maintaining the hydraulic fluid reservoir and filter. Includes troubleshooting lift and steering issues.
Power Take Off Operation:
Details on engagement, disengagement, speeds (e.g., 540/1000 RPM), and maintenance of the PTO drive shaft and clutch pack.
Front Axle And Steering:
Maintenance and repair of the front axle, steering knuckles, tie rods, and steering gearbox/pump. Covers wheel alignment and front-wheel-drive (if equipped).
Procedures:
Complete disassembly, step-by-step repair instructions, troubleshooting, diagnostic procedures, routine maintenance, adjustments, component replacement, electrical system diagnostics, wiring diagrams
Troubleshooting Charts:
Systematic troubleshooting guides to identify and resolve common problems, often presented in a 'symptom-cause-correction' format.
Torque Specifications:
Essential torque values for critical fasteners throughout the tractor, ensuring proper assembly and preventing component failure.
Component Identification:
Detailed illustrations and diagrams to help identify specific parts and components during disassembly and repair.
Depth:
Comprehensive factory-level detail suitable for both do-it-yourself owners and experienced mechanics; covers everything from basic maintenance to complete machine disassembly and rebuild.
Diagnostic Tools Required:
Implies the use of standard mechanic's tools, torque wrenches, multimeters for electrical diagnostics, and potentially specialized tools for injection pump testing, which the manual would identify.
Rebuild Procedures:
Covers complete rebuilds for major components like engines, transmissions, hydraulic pumps, and differentials, including specifications for worn parts.
Wheelbase Approx:
Approx. 90-95 inches (Varies slightly by configuration)
Length Approx:
Approx. 140-150 inches (Excluding implements)
Height Approx:
Approx. 95-105 inches (To top of cab, if equipped)
Operating Weight Approx 786:
Approx. 7,500 - 8,500 lbs (Varies with configuration and ballast)
Operating Weight Approx 886:
Approx. 8,000 - 9,000 lbs (Varies with configuration and ballast)
Engine Oil Change:
Typically every 250 hours or annually, but the manual will provide the precise interval and oil specification.
Hydraulic Fluid Change:
Refer to manual for specific interval, typically annually or based on operating hours and fluid condition.
Engine Oil Type:
Typically a heavy-duty diesel engine oil meeting API CD or CE specifications (e.g., 15W-40). Manual will specify exact viscosity and API service classification.
Hydraulic Fluid Type:
Typically an IH Hy-Tran fluid or equivalent Universal Tractor Transmission Oil (UTTO) meeting specific viscosity and performance standards. Manual will confirm.
Transmission Fluid Type:
Likely the same as hydraulic fluid (Hy-Tran or UTTO), depending on the integrated transmission/hydraulic system design. Manual will specify.
Coolant Type:
Ethylene glycol based antifreeze, typically a 50/50 mix with distilled water. Manual will confirm type and freeze protection level.
Common Wear Points:
Clutch wear, PTO drive components, hydraulic pump and valve issues, electrical wiring harness degradation, seal leaks (engine, transmission, axles).
