Positioning:
Essential technical documentation for owners, operators, and mechanics of the IH Cadet 75 tractor, aimed at maintaining and repairing the machine for agricultural and groundskeeping tasks.
Value Proposition:
Provides in-depth, manufacturer-level repair and maintenance information critical for preserving the functionality and value of a classic agricultural machine.
Features:
Covers all mechanical and electrical systems, includes detailed diagrams and specifications, and offers troubleshooting guidance.
Engine:
Engine overhaul, disassembly, assembly, tuning, cooling system, lubrication system, fuel system, ignition system, starting system, charging system
Transmission:
Gearbox, clutch, drive shaft, PTO (Power Take-Off) system
Hydraulics:
Hydraulic lift system, pump, cylinders, control valves
Steering:
Steering mechanism, linkages, adjustments
Brakes:
Brake system components, maintenance, and repair
Electrical:
Wiring diagrams, lighting, starter, generator/alternator, battery system
Chassis:
Frame, axles, suspension, hitch
Bodywork:
Sheet metal, fenders, controls layout
Maintenance:
Regular servicing, lubrication, filter changes, fluid level checks
Troubleshooting:
Diagnostic charts, symptom-based fault finding
Repair:
Detailed step-by-step repair instructions for all major components
Overhaul:
Complete engine, transmission, and hydraulic system overhauls
Adjustments:
Carburetor, ignition timing, valve lash, clutch, brake adjustments
Depth:
Comprehensive from basic maintenance to complete engine rebuilds and component overhauls
Engine Model:
IH 3-cylinder Diesel (likely variants such as BD-144 or similar)
Engine Displacement:
Approximately 144 cubic inches (2.36 liters) for BD-144
Engine Type:
Naturally Aspirated, Diesel
Horsepower:
Estimated 26-30 PTO horsepower (varies by specific engine tune and model year)
Torque:
Specific torque figures typically detailed in manual for optimal operation
Injection System:
Likely Simms or CAV inline injection pump
Carburetor Type:
N/A (Diesel)
Transmission Type:
Manual Synchromesh Gearbox
Number Of Gears:
Typically 8 forward speeds and 2 reverse speeds (4 gears in Lo/Hi range)
Optional Transmission:
Likely a standard offering, potentially with PTO options
Clutch Type:
Dual-clutch or single-stage heavy-duty clutch
Pto Speed:
Standard 540 RPM PTO
Oil Change Interval:
Engine oil and filter change every 50-100 operating hours or annually, per manual specification.
Greasing Points:
Daily or weekly greasing of all pivot points, steering joints, PTO shaft, and hitch components as outlined in the manual.
Air Filter Service:
Regular cleaning or replacement of air filter element based on operating conditions.
Coolant Service:
Coolant flush and replacement every 1-2 years. Specific coolant type detailed in manual.
Engine Oil Type:
API CD or CE rated Diesel engine oil (e.g., 15W-40 or 20W-50 depending on climate), as specified in manual.
Hydraulic Fluid Type:
IH Hy-Tran fluid or equivalent UTF (Universal Tractor Transmission Fluid) for the hydraulic system and transmission.
Transmission Fluid Type:
IH Hy-Tran fluid or equivalent UTF (Universal Tractor Transmission Fluid).
Coolant Type:
Ethylene glycol based antifreeze for diesel engines.
Common Wear Points:
Wear in the PTO engagement mechanism, hydraulic pump wear, steering linkage play, injector pump calibration drift.
Engine Problems:
Glow plug reliability, injector line leaks, potential for cylinder liner wear over extended use.
Electrical Issues:
Corroded wiring terminals, worn starter motor contacts, generator brush wear.
Transmission Problems:
Worn clutch friction material, synchronization ring wear in gearbox.
Brand History:
International Harvester (IH) was a major American manufacturer of agricultural machinery, construction equipment, trucks, and automobiles. Founded in 1902, it was a significant player in American industry for much of the 20th century.
Cadet Lineage:
The IH Cadet series represented IH's foray into the compact and utility tractor market, offering versatility for homeowners, small farms, and grounds maintenance. The Cadet 75 was a mid-range model in this successful line.
Production Period:
The Cadet 75 model was primarily produced in the late 1960s to early 1970s.
Manufacturing Location:
Typically manufactured in the United States by International Harvester.
