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International Harvester 786 Tractor WSM Service Manual
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🏷️ Basic Information Identification Make: International Harvester Model: 786 Tractor Codes Product Name: International Harvester 786 Tractor WSM Service Manual PDF Download 👋 Introduction Market Position Target Audience: Owners, operators,...
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类型: Tractor
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🏷️ Basic Information
Identification
Make:
International Harvester
Model:
786 Tractor
Codes
Product Name:
International Harvester 786 Tractor WSM Service Manual PDF Download
👋 Introduction
Market Position
Target Audience:
Owners, operators, and maintenance technicians of the International Harvester 786 Tractor seeking to perform their own repairs and maintenance.
Value Proposition:
Enables users to save significant costs by performing repairs and maintenance themselves, offering comprehensive, easy-to-follow guidance.
Competitive Analysis
Manual Advantage:
Professional-quality, in-depth service repair manual providing detailed instructions, pictures, and wiring diagrams.
Key Features
Instructional Method:
Easy-to-follow, step-by-step instructions for all repair jobs.
Visual Aids:
Includes pictures and wiring diagrams to enhance understanding and facilitate repair.
Completeness:
Covers all services, repairs, and routine maintenance, providing a complete information package.
📋 Manual Details
Coverage Areas
Manual Type:
Workshop Service Manual (WSM)
Language:
English
Format:
PDF Download
Delivery:
Instant Download
Requirements:
Adobe PDF Reader
Compatibility:
All Versions of Windows & Mac
📖 Manual Coverage
Systems Covered
Engine Service:
Complete engine overhaul, disassembly, assembly, troubleshooting, and repair for all specified engine variants.
Fuel System:
Fuel injection pump (IP) and injector service, fuel filter replacement, fuel tank and lines, troubleshooting for fuel delivery issues.
Cooling System:
Radiator service, water pump, thermostat, fan and drive belt inspection and replacement, coolant specifications and flushing procedures.
Lubrication System:
Oil pump, oil filter replacement, lubrication points, oil capacity and specifications, troubleshooting for oil pressure issues.
Electrical System:
Starter motor, alternator, battery service, wiring diagrams, lighting systems, ignition system troubleshooting (if applicable), instrument panel.
Transmission:
Gearbox overhaul, clutch service, shifting mechanisms, transmission fluid specifications and change intervals, troubleshooting for transmission problems.
Hydraulic System:
Hydraulic pump, control valves, cylinders (lift, steering), hydraulic fluid specifications, troubleshooting for hydraulic lift and steering issues.
Power Take Off Pto:
PTO engagement, PTO clutch, PTO shaft service, troubleshooting PTO operation.
Braking System:
Brake pedal, brake calipers/drums, brake lines, parking brake system, brake fluid specifications and bleeding procedures.
Steering System:
Steering wheel, steering column, steering linkages, power steering system (if equipped), troubleshooting steering issues.
Front Axle:
Front axle assembly, kingpins, steering knuckles, wheel bearings, front wheel drive (if applicable).
Rear Axle:
Rear axle housing, differential, final drives, wheel hubs.
Frame And Chassis:
Tractor frame integrity, hitch assembly (three-point hitch), drawbar, ballast adjustments.
Body And Cab:
Fenders, hood, operator station (cab/open station), seat, controls layout, access panels.
Operator Controls:
Leverage and pedal functions, dashboard indicators, switch operations.
Procedures Included
Routine Maintenance:
Oil changes, filter replacements, lubrication points, tire pressure checks, battery maintenance, pre-operational checks.
Troubleshooting Guides:
Diagnostic procedures for common and uncommon problems across all major systems, symptom-based troubleshooting charts.
Disassembly And Assembly:
Detailed step-by-step instructions for removing, inspecting, repairing, and reassembling all major tractor components and sub-assemblies.
Specifications And Tolerances:
Precise measurements, torque values, clearances, and wear limits for all critical components during repair and overhaul.
Wiring Diagrams:
Comprehensive, high-quality electrical schematics for all tractor systems, aiding in diagnosis and repair of electrical faults.
Special Tools And Jigs:
Identification and usage instructions for any specialized tools required for specific repair or maintenance procedures.
Technical Depth
Level Of Detail:
In-depth, professional quality coverage suitable for experienced mechanics and serious DIY enthusiasts.
Diagnostic Capabilities:
Advanced diagnostic strategies and troubleshooting trees for identifying root causes of operational issues.
Rebuild Procedures:
Complete instructions for engine rebuilds, transmission overhauls, hydraulic system repairs, and component restoration.
📊 Manual Specifications
File Format
Document Format:
PDF
Printability:
Full printable pages, allowing users to print specific sections or the entire manual.
Searchability:
Likely text-searchable PDF for quick information retrieval.
Digital Access:
Instant download for immediate access after purchase.
Print Quality
Image Resolution:
Professional quality images and diagrams.
Binding Type
Binding Format:
N/A (Digital Download)
Paper Type
Paper Quality:
N/A (Digital Download - user's discretion for printing)
⚙️ Engine Specifications
Primary Engine
Engine Model Typical:
IH DT-360 Diesel (3.6L)
Engine Type:
Inline 4-cylinder, turbocharged diesel
Performance
Gross Horsepower:
Approximately 86 hp (63 kW)
Net Horsepower:
Approximately 78 hp (58 kW)
Peak Torque:
Around 210-220 lb-ft (285-298 Nm)
Fuel System
Fuel Injection System:
Direct injection with rotary injection pump (e.g., Bosch or CAV)
Fuel Type:
Diesel Fuel
🔧 Transmission
Standard
Transmission Type Standard:
16-speed PowerShift (Powershift)
Optional
Transmission Type Optional:
Potentially an 8-speed synchromesh with a hi-lo range splitter (e.g., 8F/4R or similar)
Features
Powershift Description:
Offers on-the-go shifting through 16 forward and 8 reverse gears via lever controls, enhancing operational flexibility.
Clutch Type:
Dual-stage clutch for Powershift engagement and PTO engagement.
Transmission Fluid Type:
IH Hy-Tran fluid (or equivalent UTF - Universal Tractor Transmission Fluid).
Transmission Fluid Capacity:
Approximately 24-27 quarts (22.7-25.5 liters), depending on configuration.
📐 Dimensions
Exterior
Wheelbase:
Approximately 92.5 inches (2350 mm)
Overall Length:
Approximately 155 inches (3937 mm) with standard hitch
Overall Width:
Approximately 72 inches (1829 mm) at rear tread
Height To Cab:
Approximately 98-102 inches (2489-2591 mm) depending on tire size and cab option.
Weights
Operating Weight:
Around 8,000 - 8,500 lbs (3629 - 3856 kg) without ballast.
Drawbar Horsepower:
Approximately 67 hp (50 kW)
🛡️ Safety Features
Ratings
Safety Standard Compliance:
Designed to meet agricultural tractor safety standards of its era.
Active Features
Braking System Type:
Wet disc brakes, hydraulically activated, for reliable stopping power.
Parking Brake:
Independent parking brake mechanism.
Passive Features
Rollover Protective Structure Rops:
Optional ROPS (Roll-Over Protective Structure) and seatbelts were available for enhanced operator safety.
💡 Technology Features
Infotainment
Instrumentation:
Basic analog gauges for engine temperature, oil pressure, fuel level, and tachometer. Warning lights for charging, oil pressure, and air cleaner restriction.
Driver Assistance
Operator Ergonomics:
Designed for operator comfort and ease of use for its era, with intuitive lever placement and controls.
Connectivity
Tractor Integration:
Focus on mechanical and hydraulic integration with implements via PTO, three-point hitch, and hydraulic remotes.
🔧 Maintenance
Service Intervals
Engine Oil And Filter Change:
Typically every 250 hours of operation, or annually, whichever comes first. Refer to manual for specific IH recommendations.
Transmission And Hydraulic Fluid Change:
Typically every 1000-1200 hours of operation. Filter replacement should be more frequent.
Fuel Filter Replacement:
As needed or every 250-500 hours, or when experiencing fuel delivery issues.
Air Cleaner Service:
Check and clean air cleaner elements regularly, especially in dusty conditions. Replace as necessary.
Fluid Specifications
Engine Oil Specification:
API Service CD or CE rated diesel engine oil, SAE 15W-40 or 10W-30 depending on ambient temperature. Check manual for exact IH specification.
Hydraulic Fluid Specification:
International Harvester Hy-Tran (or equivalent UTF/Tractor Hydraulic Fluid meeting IH specifications for the period).
Known Issues
Transmission Problems:
Potential wear in Powershift clutches, hydraulic pump wear, and leakage in hydraulic lines and cylinders can occur with age and usage.
Engine Wear:
As with any older diesel, wear in the engine (rings, bearings, seals) can lead to oil consumption, loss of power, or smoking.
Electrical Issues:
Corrosion in wiring harnesses, faulty switches, and alternator/starter issues are common due to age.
Cooling System Leaks:
Radiator leaks, hose deterioration, and water pump seal failures are common maintenance items.
📚 Vehicle History
Brand Heritage
Manufacturer Legacy:
International Harvester (IH) was a major American manufacturer of agricultural and construction equipment, known for its robust and reliable tractors.
Model Evolution
Series Placement:
The 786 was part of IH's successful 86 series, a line of tractors that succeeded the 06 and 56 series, offering improved features and power.
Production Era:
Produced primarily from the late 1970s to the early 1980s (approx. 1976-1981).
Production
Manufacturing Location:
Likely manufactured at International Harvester's tractor plants in the United States.
🏆 Awards & Recognition
Recognitions
Historical Reputation:
The 86 series tractors, including the 786, were generally well-regarded for their power, durability, and the flexibility offered by the Powershift transmission, making them popular workhorses.