Segment:
Heavy-duty agricultural tractor.
Target User:
Farmers, agricultural contractors, mechanics, and tractor restoration enthusiasts.
Competitors:
John Deere, Case IH, Ford, Massey Ferguson tractors of similar era and horsepower.
Tractor Features:
Known for its robust construction, powerful engines, and available power shift transmission, making it a versatile workhorse.
Value Proposition:
Essential resource for maintaining operational efficiency, diagnosing faults, and performing cost-effective repairs on the IH 1206.
Primary Coverage:
Comprehensive service and repair information for the International Harvester 1206 Tractor.
Engine Coverage:
Detailed engine overhaul, repair, and troubleshooting for gasoline and diesel variants.
Transmission Coverage:
Repair and adjustment procedures for the power shift transmission (optional) and standard gear transmissions.
Hydraulic System Coverage:
Information on the tractor's hydraulic system, including pump, valves, cylinders, and associated components.
Electrical System Coverage:
Wiring diagrams, troubleshooting, and repair for the electrical system, including starting, charging, and lighting.
Chassis And Body Coverage:
Repair and maintenance for the front axle, rear axle, steering, brakes, and operator's station.
Estimated Page Count:
Approximately 500-700 pages (typical for comprehensive service manuals of this era).
Type:
Factory Service Repair Manual
Engine Systems:
Fuel system, lubrication system, cooling system, ignition system (gasoline), starting system, exhaust system.
Drivetrain Systems:
Clutch, transmission (gear and power shift), differential, final drives, PTO (Power Take-Off).
Hydraulic And Control Systems:
Hydraulic pump, reservoir, control valve, lift arms, draft control, steering hydraulics.
Braking Systems:
Brake pedal, master cylinder, wheel cylinders, brake shoe adjustment, parking brake.
Electrical Systems:
Battery, generator/alternator, starter motor, ignition switch, lighting circuits, accessory wiring, dashboard instrumentation.
Steering Systems:
Mechanical steering linkage, power steering system.
Routine Maintenance:
Oil changes, filter replacements, lubrication points, greasing schedules, air cleaner service.
Engine Overhaul:
Complete engine disassembly, cleaning, inspection, measurement, component replacement, and reassembly.
Transmission Repair:
Clutch adjustment and replacement, gear train inspection, power shift unit disassembly and repair, PTO clutch service.
Hydraulic System Repair:
Hydraulic pump testing and repair, valve body overhaul, cylinder seal replacement, diagnostic procedures.
Electrical Troubleshooting:
Diagnostic charts, wiring diagram interpretation, common electrical fault finding and repair.
Chassis Component Repair:
Front axle bearing service, rear axle seal replacement, brake system bleeding and adjustment, steering linkage repair.
Specifications And Tolerances:
Detailed torque specifications, clearances, and measurement data for all critical components.
Troubleshooting Guides:
Systematic diagnostic procedures for identifying and rectifying common and uncommon problems.
Depth Level:
Comprehensive; covers from routine maintenance to complete engine and transmission rebuilds.
Diagnostics:
Detailed diagnostic procedures, fault code interpretation (where applicable), and system testing.
Rebuild Instructions:
Step-by-step instructions with diagrams for major component overhauls.
Engine Type:
Diesel and Gasoline variants available.
Diesel Engine Model:
D-360 (6-cylinder)
Gasoline Engine Model:
C-263 (6-cylinder)
Diesel Horsepower Rated:
Approx. 64 PTO HP, 54 Drawbar HP (values can vary slightly by specific configuration and testing).
Gasoline Horsepower Rated:
Approx. 58 PTO HP, 48 Drawbar HP (values can vary slightly by specific configuration and testing).
Diesel Displacement:
360 cubic inches (5.9 Liters)
Gasoline Displacement:
263 cubic inches (4.3 Liters)
Diesel Fuel System:
Direct injection, typically with Roosa Master or Bosch injection pump.
Gasoline Fuel System:
Carbureted.
Standard Transmission Type:
Gear drive transmission, typically 10-speed (5 forward, 1 reverse in two ranges).
Optional Transmission Type:
T-34 Power Shift (16-speed forward, 8-speed reverse).
Pto:
540/1000 RPM PTO (Power Take-Off).
Differential Lock:
Yes, rear differential lock.
Wheelbase:
Approx. 94 inches (2388 mm).
Overall Length:
Approx. 145 inches (3683 mm).
Operating Weight Diesel:
Approx. 8,200 - 8,500 lbs (3719 - 3856 kg).
Drawbar Pull Max Estimated:
Significantly higher than its own weight due to traction and weight transfer.
Engine Oil Change Diesel:
Every 100-150 hours or annually, whichever comes first (refer to manual for exact specification).
Fuel Filter Replacement:
Every 250 hours or as needed.
Air Cleaner Service:
Daily or as needed based on operating conditions; element cleaning/replacement every 250 hours.
Transmission Oil Change:
Every 600-1000 hours (gear drive) or 1200 hours (Power Shift), consult manual.
Engine Oil Diesel:
API Service CD or better, SAE 10W-30 or 15W-40 depending on ambient temperature.
Hydraulic Fluid:
IH Hy-Tran fluid or equivalent UTF (Universal Tractor Transmission fluid).
Transmission Oil Gear Drive:
API GL-4, SAE 80W-90 or 85W-140 depending on temperature.
Coolant:
Ethylene glycol based antifreeze with rust inhibitors, typically 50/50 mix with distilled water.
Common Problems:
Wear on PTO clutch, hydraulic pump wear leading to reduced lift capacity, potential for steering cylinder leaks, ignition system issues on gasoline models.
Power Shift Transmission:
The Power Shift transmission, while advanced, can be prone to wear in the clutch packs and seals if not properly maintained or if subjected to excessive abuse.
Preventative Maintenance:
Regular lubrication, correct fluid levels and types, and timely filter changes are crucial for longevity.
Heritage:
International Harvester (IH) was a major American manufacturer of agricultural and construction equipment, known for its powerful and durable machinery.
Predecessors:
Successor to models like the 706 and 806, featuring increased power and updated features.
Generation:
Part of the '06 series introduced in the mid-1960s.
Production Years:
Approximately 1963-1967.
Manufacturing Location:
United States (primarily Chicago, Illinois).