Target Audience:
Owners of B.F. Avery and Minneapolis-Moline tractors seeking to perform maintenance, repairs, and restoration.
Value To Owner:
Empowers owners to perform complex maintenance and repairs, extending the service life of vintage machinery and preserving its value.
Value Proposition:
Provides in-depth technical information to save on professional repair costs and maintain vehicle value. Instant download convenience.
Key Features:
Detailed diagrams, step-by-step instructions, broad system coverage, digital format for accessibility across devices.
Diagram Quality:
Exploded views and detailed illustrations are crucial for understanding component relationships and assembly sequences.
Covered Systems:
General Information, Belt Pulley, Brakes, Carburetor, Clutch, Cooling System, Differential, Electrical System, Engine, Final Drive, Front System, Governor, Hydraulic System, Ignition System, Power Take Off (PTO), Steering Gear, Transmission
Electrical System Details:
Covers battery, generator/alternator (if applicable), starter motor, ignition switch, lighting, and wiring diagrams.
Hydraulic System Details:
Details operation, maintenance, and repair of the hydraulic pump, reservoir, control valves, and cylinders for implement operation.
Power Take Off Pto:
Details operation, maintenance, and potential repair of the PTO shaft and engagement mechanism.
Included Procedures:
Step-by-step repair instructions, exploded diagrams, maintenance procedures, troubleshooting guidance, diagnostic steps, disassembly and reassembly procedures
Engine Overhaul Procedures:
Includes detailed steps for engine disassembly, component inspection, machining specifications (e.g., bore, stroke, valve guides), and reassembly.
Transmission Rebuild Procedures:
Covers clutch replacement, gear synchronization, bearing replacement, and shifting mechanism repair.
Steering System Repair:
Includes adjustments and replacement of steering components such as tie rods, drag links, and steering gears.
Technical Depth:
Comprehensive, suitable for both routine maintenance and major repairs. Covers detailed component servicing and rebuilds.
Torque Specifications:
Provides essential torque values for critical fasteners (e.g., cylinder head bolts, main bearing caps, wheel hubs).
Troubleshooting Charts:
Includes systematic troubleshooting guides for common problems related to starting, running, power, and hydraulic systems.
Clearances And Tolerances:
Provides critical engineering clearances for engine components (e.g., piston-to-cylinder wall, bearing clearances, valve lash) and other mechanical systems.
File Format:
PDF (Portable Document Format)
Searchability:
PDF format allows for keyword searching, enhancing the user's ability to quickly locate specific information.
Print Quality:
High Resolution (suitable for clear printing)
Binding Type:
N/A (Digital Download - Printable)
Paper Type:
N/A (Digital Download - User Printable)
Engine Type:
Likely single or twin-cylinder, gasoline-powered, air-cooled engines common for the era and manufacturer. Specific engine types vary by model and year.
Horsepower Range:
Typically in the 15-30 HP range, dependent on specific model and engine configuration.
Torque Output:
While specific torque figures vary, these engines were designed for sustained pulling power characteristic of agricultural work.
Fuel Delivery:
Carburetor-based fuel delivery. Specific carburetor models and adjustments are detailed within the manual.
Cooling Method:
Air-cooled, achieved through strategically placed fins on the engine block and cylinder head, assisted by a fan.
Transmission Type:
Manual, sliding gear transmissions. Specific number of forward and reverse gears vary by model.
Optional Features:
Some models might have offered different gear ratios or specialized transmissions. Manual will detail available options.
Clutch Type:
Dry clutch, typically single-plate, operated by a foot pedal or hand lever.
Gear Selection:
Typically shifted via one or more lever mechanisms mounted on the transmission housing or steering column.
Wheelbase:
Varies by model (e.g., Avery R typically around 75-80 inches). Manual would contain specific measurements.
Tire Sizes:
Front tires typically 4.00-16 or 5.50-16; Rear tires commonly 9.5-24, 10-24, 11-24, or 11-32. Manual confirms specific sizes.
Operating Weight:
Typically between 2500-4000 lbs (1135-1815 kg), depending on model and configuration. Manual would provide exact weights.
Front Axle Weight:
Manual will contain front axle weight specifications crucial for proper ballast and operation.
Safety Standards:
Reflects safety standards of the period (1940s-1950s). Manual focuses on mechanical integrity and operational safety.
Braking System:
Mechanical drum or band brakes, operated via foot pedals. Manual details adjustment and maintenance.
Operator Controls:
Hand throttle, clutch pedal, brake pedals, steering wheel, gear levers. Manual details their function and adjustment.
Engine Oil Change:
Typically every 50-100 operating hours or annually. Manual will specify exact interval and oil type.
Greasing:
Regular greasing of pivot points, wheel bearings, and linkage points is crucial. Manual will detail lubrication points and schedule.
Air Filter Cleaning:
Frequent cleaning or replacement of the air filter element is essential for engine longevity. Manual specifies interval and cleaning procedure.
Engine Oil Type:
Likely SAE 10W or 30 API CD/SD or similar diesel/gasoline engine oil. Manual provides precise specification.
Transmission Hydraulic Fluid:
Typically a tractor hydraulic fluid (THF) or SAE 90 gear oil. Manual will specify correct fluid and capacity.
Coolant Type:
If equipped with a radiator, a mixture of antifreeze and water is used. Manual will specify type and ratio.
Common Wear Items:
Ignition points, condensers, spark plugs, carburetor jets, clutch facings, brake linings, seals, and bearings are common wear items requiring periodic attention.
Cooling System Maintenance:
Radiator cleaning, flushing, and ensuring proper coolant level and flow are vital. Manual covers radiator and fan belt service.
Governor Adjustment:
Governor sensitivity and adjustment can affect engine speed stability; manual provides calibration procedures.
Avery Heritage:
B.F. Avery & Sons was a prominent American tractor manufacturer known for its reliable and innovative agricultural machinery.
Minneapolis Moline Heritage:
Minneapolis-Moline was a major American manufacturer of agricultural and construction machinery, formed from a merger of several companies, known for distinctive styling and engineering.
Model Lineup:
The B.F. Avery 'A', 'R', and 'V' models, along with the Minneapolis-Moline MMBF, MMBG, and MMV, represent a series of popular row-crop and general-purpose tractors from the mid-20th century.
Production Era:
These tractor models were primarily produced from the late 1940s through the 1950s.
