Target Audience:
Do-it-yourself owners and experienced mechanics seeking in-depth repair and service information.
Value Proposition:
An inexpensive way to keep the tractor working properly by providing comprehensive, detailed repair and service information.
Content Highlights:
Detailed illustrations, diagrams, wiring schematics, specifications, step-by-step instructions, troubleshooting guides, and notes/cautions/warnings.
Primary Coverage:
Complete service and repair for International Harvester 786 Tractor
Specific Systems:
Engine Mechanical, Engine Electrical, Emission Control, Fuel System, Suspension System, Clutch System, Manual Transaxle System, Automatic Transaxle System, Driveshaft and Axle, Steering System, Brake System, Body Interior and Exterior, Body Electrical System, Restraint System
Estimated Page Count:
Comprehensive (Exact number not specified, but described as 'complete' and 'covers every detail')
Type:
Service Repair Manual / Workshop Manual / Factory Service Repair Manual
Delivery Method:
Instant Download
Printability:
Fully Printable
Viewability:
Zoom IN/OUT enabled
Software Requirements:
Adobe PDF Reader, WinZip
Operating System Compatibility:
All Versions of Windows & Mac
Engine Mechanical:
Detailed repair procedures for engine components, including disassembly, inspection, assembly, and specifications.
Engine Electrical:
Coverage of electrical systems, ignition, starting, charging, and lighting, including wiring diagrams.
Emission Control:
Information pertaining to the tractor's emission control systems, diagnosis, and adjustments.
Fuel System:
Comprehensive details on the fuel system, including fuel injection, pumps, filters, and carburetor adjustments (if applicable).
Suspension System:
Information regarding the tractor's suspension components, maintenance, and repair.
Clutch System:
Detailed procedures for clutch inspection, adjustment, and replacement.
Manual Transaxle System:
Step-by-step guides for the repair and maintenance of the manual transmission and associated components.
Automatic Transaxle System:
If equipped, detailed coverage for automatic transmission maintenance, repair, and diagnosis.
Driveshaft And Axle:
Procedures for servicing the driveshaft, universal joints, and axles.
Steering System:
Information on steering mechanisms, hydraulic assist, and repair procedures.
Brake System:
Detailed coverage of the braking system, including hydraulic, mechanical, and parking brake components.
Body Interior And Exterior:
Maintenance and repair of body panels, cabin components, operator controls, and interior trim.
Body Electrical System:
Detailed electrical schematics and troubleshooting for the tractor's lighting, instrumentation, and accessory circuits.
Restraint System:
Information related to operator restraint systems, such as seat belts and rollover protection (if applicable).
Maintenance:
Routine maintenance tasks, lubrication, fluid changes, filter replacements, and tune-ups.
Troubleshooting:
Systematic diagnostic procedures to identify and resolve common and complex issues.
Repair:
Step-by-step instructions for component removal, disassembly, repair, reassembly, and installation.
Electrical Diagnostics:
Combined troubleshooting and electrical service procedures with detailed wiring diagrams.
Depth:
Comprehensive, suitable for both DIY users and experienced mechanics, covering detailed substeps and critical information.
Illustrations:
Includes detailed illustrations, diagrams, and photos to guide through procedures.
Formatting Aids:
Numbered instructions, bold figure numbers, and a numbered table of contents for easy navigation.
Engine Type:
Diesel (Likely based on typical IH configurations for this model range, specific engine code not provided but usually D-239 or D-268 variants for this era)
Displacement:
Typically around 239 cubic inches (3.9L) or 268 cubic inches (4.4L) for this series.
Horsepower:
Rated horsepower typically in the 70-85 PTO HP range, but specific engine variant is key.
Torque:
Specific torque figures depend on engine variant, but generally robust for farm applications.
Injection System:
Likely a rotary or inline injection pump system (e.g., CAV, Bosch).
Transmission Type:
Manual Synchromesh (likely 8-speed or 16-speed with creeper gear options, e.g., Power-Shift or Torque Amplifier were common IH options)
Optional Transmission:
Possible availability of a powershift transmission (e.g., IH 4-speed Power Transfer).
Gear Options:
The manual refers to both Manual Transaxle System and Automatic Transaxle System, indicating potential variations or confusion in product description. Typically, IH tractors of this era offered manual or powershift options.
Engine Oil Change:
Typically every 250-300 operating hours, or annually, depending on usage severity. Specific interval would be detailed in the manual.
Air Filter Service:
Check and service at regular intervals, or more frequently in dusty conditions. Specific interval would be detailed in the manual.
Fuel Filter Replacement:
Recommended replacement at specified intervals or based on performance issues. Specific interval would be detailed in the manual.
Engine Oil Type:
API CD or CE rated diesel engine oil, typically SAE 15W-40 or 30 depending on ambient temperature. Specific recommendation in manual.
Hydraulic Fluid Type:
IH Hytran or equivalent tractor hydraulic fluid. Specific specification would be detailed in the manual.
Common Wear Points:
Potential wear on clutch components, transmission synchronizers, PTO drive, and hydraulic pump seals. Electrical connections can also be a point of failure over time.
Engine Specifics:
Common issues for IH diesel engines of this era can include injector pump timing and seal leaks, injector nozzle wear, and head gasket issues if overheated.
Manufacturer Legacy:
International Harvester (IH) was a prominent American manufacturer of agricultural machinery and vehicles, known for its durable and reliable tractors.
Series Context:
The 786 is part of IH's '86 series, which succeeded the popular 74, 76, and 82 series. It represented an evolution in design and comfort features.
Production Period:
The 86 series, including the 786, was produced from approximately 1976 to 1981.
Manufacturing Location:
Typically manufactured in the United States by International Harvester.
