Product Offering:
Essential repair and maintenance documentation for owners and mechanics of vintage International Harvester/Farmall A, AV, B, BN tractors and U-2 power units.
Value Proposition:
Provides critical, hard-to-find technical information for maintaining and restoring these classic agricultural machines, enabling DIY repairs and extending operational life.
Key Selling Points:
Instant download, PDF format, comprehensive coverage of multiple related models, detailed diagrams and procedures.
Primary Coverage:
Complete servicing and repair for Farmall A, AV, B, BN, and International A & U-2 Power Unit tractors.
Estimated Page Count:
Detailed page count not specified in product information, but implies comprehensive coverage.
Manual Type:
Complete Service Manual / Repair Book
Format:
PDF (Instant Download)
Engine Systems:
Overhauling, fuel system repair, lubrication.
Transmission Systems:
Transmission repair, clutch, gearbox.
Brake Systems:
Brake servicing and repair.
Electrical Systems:
Wiring diagrams, electrical component servicing.
Hydraulic Systems:
Hydraulics servicing and repair.
Cooling Systems:
Water cooling system maintenance and repair.
Chassis And Suspension:
Frame, steering, front axle.
Bodywork And Fittings:
Fenders, controls, operator station.
Maintenance:
Routine maintenance procedures, lubrication schedules.
Troubleshooting:
Diagnostic procedures for common issues.
Repair And Overhaul:
Detailed instructions for engine, transmission, hydraulics, brakes, and electrical systems overhaul.
Engine Rebuild Procedures:
Detailed steps for piston removal/installation, ring replacement, crankshaft bearing service, valve guide replacement, cylinder head overhaul, timing gear inspection.
Transmission Overhaul Procedures:
Disassembly, inspection, and reassembly of the sliding gear transmission, including input/output shafts, gears, synchronizers (if applicable), and shifter mechanisms.
Hydraulic System Repair Procedures:
Troubleshooting hydraulic lift issues, pump service, cylinder seal replacement, valve body inspection and repair, and fluid circuit bleeding.
Steering System Repair:
Service and adjustment for the steering gearbox, linkage, and front axle components.
Electrical System Diagnostics:
Diagnosis and repair of starting system, charging system (generator/alternator), lighting circuits, and ignition system using provided wiring diagrams.
Depth Of Coverage:
Comprehensive; covers routine maintenance to complete engine and component rebuilds, including wiring diagrams.
Technical Drawings:
Includes detailed diagrams and illustrations of components and systems to aid in repair and understanding.
Part Identification:
While not a parts catalog, the service manual will identify key components and their locations during disassembly/reassembly steps.
Troubleshooting Charts:
Likely contains charts or guided procedures for diagnosing common operational problems.
Nebraska Test Farmall A:
No. 330
Nebraska Test Farmall Av:
No. 329 (listed with Farmall A)
Nebraska Test Farmall B:
No. 331
Nebraska Test Farmall Bn:
No. 331 (listed with Farmall B)
Operator Safety Features:
Basic mechanical controls, safety is primarily dependent on operator experience and adherence to operational guidelines (covered in manual).
Chassis Design:
Sturdy frame construction for stability during field operations.
Engine Oil Change:
Refer to manual for specific hours/mileage; typically every 50-75 operating hours for these vintage tractors.
Grease Points:
Daily/Weekly lubrication of kingpins, tie rods, steering arms, clutch throwout bearing, etc., as per manual.
Air Cleaner Service:
Frequent service recommended, especially in dusty conditions. Usually oil bath type, requiring regular cleaning and oil replacement.
Engine Oil Recommendation:
SAE 10W or 20W depending on ambient temperature (manual will specify precise grades and API service classification if applicable).
Transmission And Differential Oil:
Gear Oil, SAE 90 (manual will specify capacity and exact type).
Hydraulic System Oil:
Hydraulic Fluid or Universal Tractor Transmission Oil (UTTO) meeting IH specifications (manual will detail).
Coolant Type:
Water with appropriate anti-corrosion/anti-freeze additives (as specified).
Common Wear Items:
Clutch friction plates, brake band linings, worn bearings in transmission and final drives, carburetor issues (gumming/leaks), ignition system components (points, condenser, spark plugs), radiator leaks, worn valve guides.
Distillate Engine Considerations:
Requires careful fuel system cleaning and adjustments due to the nature of distillate fuel. Potential for carbon buildup. Manual provides specific guidance.
Hydraulic System Performance:
Potential for slow operation or leaks due to seal wear or contamination. Manual covers troubleshooting and seal replacement.
Manufacturer History:
International Harvester (IH) was a major American manufacturer of agricultural and construction equipment, as well as vehicles. The Farmall line represented a significant innovation in tractor design.
Farmall A Introduction:
1939
Farmall A Discontinuation:
1947
Farmall A Predecessor:
McCormick-Deering Farmall F-14
Farmall A Successor:
McCormick Farmall Super A
Farmall Av Introduction:
1941
Farmall Av Discontinuation:
1947
Farmall Av Successor:
McCormick Farmall Super AV
Farmall B Introduction:
1940
Farmall B Discontinuation:
1948
Farmall B Predecessor:
McCormick-Deering Farmall F-14
Farmall B Successor:
McCormick Farmall C
Farmall Bn Introduction:
1941
Farmall Bn Discontinuation:
1947
Farmall Bn Successor:
McCormick Farmall C
Farmall A Production Numbers:
128,246 (includes A-AV, International A)
Farmall B Production Numbers:
93,156 (includes BN)
Factory Location:
Tractor Works, Chicago, Illinois
Farmall A Approx Cost 1941:
$542
Farmall A Approx Cost 1947:
$1295
Farmall Av Approx Cost 1941:
$660
Farmall B Approx Cost 1940:
$605
