Positioning:
A crucial resource for owners and technicians seeking to maintain and repair the versatile International Harvester 966 Tractor.
Value Proposition:
Offers a comprehensive, factory-accurate alternative to generic repair guides, ensuring correct procedures and specifications are followed.
Ease Of Use:
Organized with a table of contents for quick information retrieval, minimizing downtime and repair stress.
Cost Savings:
Empowers users to perform repairs and maintenance themselves, significantly reducing labor costs.
Knowledge Acquisition:
Provides in-depth understanding of the tractor's systems, essential for effective troubleshooting and emergency repairs.
Primary Coverage:
Service and Repair
Diagnostic Coverage:
Troubleshooting Guide Included
Maintenance Coverage:
Maintenance Schedule Included
Wiring Coverage:
Wiring Diagrams Provided
Estimated Pages:
Comprehensive (Specific count not provided, but implied extensive)
Type:
Factory Service Repair Manual / Workshop Manual
Engine:
Full engine overhaul, diagnostics, repair, and tuning
Transmission:
Service and repair for both standard and hydrostatic transmissions
Hydraulic System:
Operation, maintenance, troubleshooting, and repair of the hydraulic system (hitch, remote hydraulics)
Electrical System:
Complete wiring diagrams, troubleshooting for electrical components, starter, alternator, lighting
Power Take Off:
PTO system inspection, repair, and maintenance
Steering System:
Power steering system diagnosis and repair
Braking System:
Brake system service, adjustment, and component replacement
Cooling System:
Radiator, thermostat, water pump, and fan service
Fuel System:
Fuel tank, filter, injection pump, and injector service
Chassis And Frame:
Frame inspection, axle service, and general chassis maintenance
Operator Station:
Seat, controls, dashboard, and safety features
General Repairs:
Step-by-step repair procedures for all major components
Troubleshooting:
Systematic troubleshooting guides for common and uncommon issues
Preventative Maintenance:
Detailed maintenance schedules and procedures
Disassembly Assembly:
Comprehensive instructions for component disassembly and reassembly
Special Tools:
Identification and usage of specialized tools required for repairs
Depth:
Comprehensive factory-level repair and diagnostic information, suitable for professional mechanics and knowledgeable owners
Engine Model:
International Harvester D-239 (Diesel)
Engine Type:
Inline 3-cylinder, naturally aspirated diesel
Displacement:
3.8 L (233.7 cu in)
Stroke:
4.50 in (114.3 mm)
Rated Horsepower:
Approx. 75 PTO HP (56 kW)
Rated Drawbar Horsepower:
Approx. 65 HP (48 kW)
Injection System:
Bosch inline injection pump
Fuel Filter Part Number:
Example: IH 373894R1, Fleetguard FF5052 (verify with manual)
Engine Oil Capacity:
Approx. 12 quarts (11.4 L) with filter (verify with manual)
Engine Oil Type:
API CD or CE rated diesel engine oil, SAE 30 or 15W-40 depending on temperature (verify with manual)
Coolant Type:
Ethylene glycol based antifreeze with corrosion inhibitors (verify with manual)
Type:
Manual (Synchronized Gear Drive)
Type:
Hydro (T-34 Series Hydrostatic Transmission)
Manual Gearbox:
16 Forward Speeds / 8 Reverse Speeds (with creeper)
Hydrostatic Gearbox:
Infinitely variable speed control
Manual Transmission Oil Capacity:
Approx. 14 quarts (13.2 L) (verify with manual)
Hydrostatic Transmission Oil Capacity:
Approx. 26 quarts (24.6 L) (verify with manual)
Transmission Oil Type:
IH Hy-Trans fluid or equivalent (verify with manual)
Wheelbase:
86.5 inches (2197 mm)
Operating Weight Approx:
7,200 - 8,500 lbs (3,265 - 3,855 kg) depending on configuration
Front Axle Capacity:
Approx. 3,500 lbs (1,588 kg)
Rear Axle Capacity:
Approx. 10,000 lbs (4,536 kg)
Operator Safety:
Manual emphasizes safe operating procedures, proper guarding, and maintenance of safety features.
Parking Brake:
Mechanical parking brake system
Operator Station Design:
Ergonomic placement of controls, operator visibility (inherent to design)
Features:
Basic operator controls, instrument cluster (tachometer, temperature gauge, oil pressure warning, fuel gauge).
Features:
Power steering (standard/optional), differential lock (mechanical).
Features:
N/A (Agricultural equipment of its era).
Engine Oil Change:
Every 250 operating hours (verify with manual for specific conditions)
Air Filter Cleaning:
Inspect and clean frequently, replace as needed (daily checks recommended)
Fuel Filter Replacement:
Every 500 operating hours or as needed (verify with manual)
Transmission Fluid Change:
Every 1000 operating hours (verify with manual)
Hydraulic Fluid Type:
IH Hy-Trans fluid or equivalent (verify with manual)
Hydraulic System Capacity:
Approx. 26 quarts (24.6 L) (verify with manual)
Common Problems:
Potential wear on transmission synchronizers (manual), hydrostatic pump and motor wear (Hydro), hydraulic pump performance degradation, aging electrical components, starter motor issues.
Brand Legacy:
International Harvester (IH) was a major American manufacturer of agricultural and construction machinery, known for its robust and reliable equipment.
966 Placement:
Part of the IH 06 Series tractors, succeeding the 66 series (e.g., 706, 806). The 966 offered increased power and features compared to its predecessors.
Production Years:
1971-1976
