Segment:
Utility Tractor (Compact to Medium Duty)
Target Audience:
Farmers, smallholders, estate managers, mechanics, and tractor enthusiasts requiring in-depth maintenance and repair information.
Competitors:
Massey Ferguson 35, Ford 3000 series, John Deere 1020/2020 series, David Brown 885/990 series.
Value Proposition:
Provides comprehensive, factory-authorized technical data essential for maintaining and repairing the IH 484 tractor, ensuring longevity and optimal performance.
Service Manual Coverage:
Engine overhaul, transmission repair, hydraulics, electrical system, drivetrain, braking system, steering, front axle, rear axle, PTO, chassis, bodywork, troubleshooting, specifications, maintenance.
Operator Manual Coverage:
Operating instructions, safety precautions, controls identification, pre-operation checks, lubrication, maintenance, storage, hitching and operating implements.
Service Manual Estimated Pages:
Approximately 500-700 pages (typical for this era of comprehensive service manuals).
Operator Manual Estimated Pages:
Approximately 80-120 pages.
Service Manual Type:
Factory Service Repair Manual (FSM)
Operator Manual Type:
Factory Operator's Manual
Format:
Improved PDF (with Bookmarks, Searchable Text, Index, and Improved Quality)
Engine System:
Dismantling, inspection, repair, and assembly of the IH D-154, D-179, and D-206 diesel engines. Includes cylinder head, block, crankshaft, pistons, connecting rods, camshaft, valve train, lubrication system, cooling system, fuel system (injection pump, injectors), and starting system.
Transmission System:
Repair and overhaul of the gearbox, clutch, power take-off (PTO) engagement, differential lock, and final drives. Includes gear inspection, bearing replacement, and shift linkage adjustments.
Hydraulics System:
Maintenance, troubleshooting, and repair of the hydraulic pump, control valve, lift cover, hydraulic cylinders (for 3-point hitch and remote cylinders), and associated plumbing. Covers pressure testing and flow rates.
Electrical System:
Wiring diagrams, troubleshooting of starting and charging systems, lighting, instrument panel, and component testing (alternator, starter motor, battery).
Braking System:
Service and adjustment of internal expanding shoe brakes, brake pedals, and linkages. Includes component replacement and bleeding procedures.
Steering System:
Repair and adjustment of the steering column, steering box, tie rods, and drag links. Covers both manual and power steering options if applicable.
Front And Rear Axle:
Overhaul of front axle components (kingpins, bushings, steering knuckles) and rear axle assemblies, including wheel hubs and bearings.
Chassis And Bodywork:
Frame inspection, mounting of components, fender repair, seat installation, and general bodywork procedures.
Maintenance Procedures:
Lubrication schedules, fluid level checks and changes, filter replacements, filter part numbers, greasing points, battery maintenance, tire pressure specifications.
Troubleshooting Procedures:
Systematic diagnostic charts for common problems (e.g., engine won't start, hydraulic issues, transmission noise) with step-by-step solutions.
Repair Procedures:
Detailed, illustrated instructions for the complete disassembly, repair, and reassembly of all major tractor components and systems.
Adjustment Procedures:
Correct procedures for adjusting clutch, brakes, PTO engagement, hydraulic controls, engine governor, and valve lash.
Torquing Specifications:
Comprehensive list of all critical bolt and nut torque values for engine, transmission, hydraulics, and chassis components.
Depth:
Comprehensive rebuild level. Suitable for professional mechanics and experienced DIY enthusiasts. Covers detailed internal component specifications and tolerances.
Engine Model Options:
IH D-154, IH D-179, IH D-206 (depending on specific tractor build).
Engine Type:
Naturally Aspirated, Indirect Injection Diesel
Displacement D154:
2.5 Liters (154 cu in)
Displacement D179:
2.9 Liters (179 cu in)
Displacement D206:
3.4 Liters (206 cu in)
Horsepower Range:
Approximately 40-55 PTO HP (varies by engine variant and tuning).
Torque Peak:
Specific values not universally listed, but typical for the displacement and RPM range.
Injection Pump:
Bosch or CAV inline injection pump (specific model varies).
Oil Capacity:
Approximately 6.5 Liters (6.9 US Quarts) with filter change (check manual for exact spec).
Recommended Oil Viscosity:
SAE 30W or 10W-30 (depending on climate and manufacturer recommendation, consult manual).
Oil Filter Part Number Example:
Wix 51334, Fram PH8A, Baldwin B2, Case IH 132487A1 (verify with manual for exact fitment).
Transmission Type:
Constant Mesh Gearbox with Helical Gears
Speeds:
8 Forward / 4 Reverse (typical configuration).
Clutch Type:
Single Plate Dry Clutch
Pto:
540 RPM PTO, mechanically driven.
Differential Lock:
Mechanical differential lock, foot pedal operated.
Transmission Fluid Capacity:
Approximately 22 Liters (23 US Quarts) of Universal Tractor Transmission Oil (UTTO) or equivalent gear oil.
Transmission Fluid Type:
UTTO (e.g., Case IH Hy-Tran Plus), SAE 90 GL-4 Gear Oil recommended in manual.
Safety Certification:
Designed to meet contemporary safety standards of its production era. Operator's manual details specific safety features and practices.
Braking System:
Dual brake pedals that can be locked together for enhanced braking performance and steering assist (skid steering).
Differential Lock:
Provides improved traction on slippery surfaces.
Operator Station:
Open station with a padded seat, basic controls, and a roll-over protective structure (ROPS) or mounting points for one may be standard or optional depending on build date and region.
Lighting:
Standard headlights and taillights for visibility.
Engine Oil Change:
Every 250 hours or annually (consult manual for precise interval).
Air Filter Service:
Check daily, service as needed or every 50 hours.
Fuel Filter Change:
Every 250 hours or annually.
Transmission Oil Change:
Every 1000 hours or every two years.
Coolant:
Ethylene Glycol based antifreeze (50/50 mix with water recommended) providing freeze protection and corrosion inhibition. Capacity approximately 14 Liters (14.8 US Quarts).
Common Wear Items:
Clutch wear, PTO shaft wear, hydraulic pump seals, front axle kingpin bushings, brake adjustment/wear.
Potential Electrical Issues:
Aging wiring harnesses, starter solenoid issues, alternator brush wear.
Engine Starting Difficulties:
Can be related to injection pump timing, glow plug system (if equipped), or battery condition. Manual provides troubleshooting.
Manufacturer:
International Harvester (IH), later Case IH after the 1985 merger.
Series:
Part of the IH 400 series utility tractors, succeeding models like the 424 and evolving from the earlier 384/374 range.
Production Years:
Approximately 1970s to early 1980s.
Manufacturing Location:
Various IH plants, commonly associated with Doncaster, UK and Louisville, USA.
