Category:
Agricultural Tractor
Target Audience:
Oliver Cletrac Model A Owners, Operators, and Maintenance Personnel
Illustrations:
Features very nice illustrations, enhancing understanding of components and procedures.
Comprehensiveness:
Provides essential information for the safe and effective operation and upkeep of the tractor.
Engine:
Gasoline Engine: Description, Lubrication, Cooling, Fuel System, Ignition System, Starting System, Carburetor Details
Transmission:
Transmission, Clutch, Differential, and Drive Axles: Construction, Operation, Lubrication, Maintenance
Steering:
Steering Mechanism: Operation, Lubrication, Adjustments
Brakes:
Brake System: Operation, Adjustment, Maintenance
Hydraulics:
Hydraulic System (if equipped): Operation, Maintenance, Fluid Specifications
Electrical:
Electrical System: Generator/Alternator, Battery, Lighting, Ignition Wiring Diagrams
Front Axle:
Front Axle and Wheel Assembly: Lubrication, Maintenance
Rear Axle:
Rear Axle Housing and Drive Assembly: Lubrication, Maintenance
Cooling System:
Cooling System: Radiator, Fan, Water Pump, Thermostat, Coolant Specifications
Fuel System:
Fuel System: Tank, Lines, Filters, Carburetor Adjustment
Daily Checks:
Pre-Operation Checks: Fluid Levels, Tire Pressure, Visual Inspection
Lubrication:
Lubrication Schedule and Procedures for All Service Points
Engine Maintenance:
Spark Plug Replacement, Air Cleaner Servicing, Oil Changes, Valve Adjustments
Transmission Maintenance:
Gear Oil Changes, Clutch Adjustment, Differential Servicing
Brake Adjustment:
Brake Pedal Free Play Adjustment, Brake Band Adjustment
Steering Adjustment:
Steering Gear Play Adjustment
Troubleshooting:
Basic Troubleshooting Guide for Common Operational Issues
Storage:
Seasonal Storage and Recommissioning Procedures
Depth:
Comprehensive coverage suitable for operators and basic mechanical adjustments. Includes detailed illustrations for clarity.
Engine Type:
Gasoline, 4-cylinder, Overhead Valve (typical for this era/model)
Displacement:
Approx. 152 cu. in. (2.5 Liters) - Specific displacement may vary by sub-model or engine variant.
Horsepower:
Estimated 25-30 Belt Horsepower (BHP) - Actual figures can vary.
Torque:
Data not readily available without specific engine variant details, but designed for substantial low-end torque.
Carburetor:
Single Barrel Carburetor (e.g., Marvel-Schebler, Zenith) with manual adjustment procedures.
Wheelbase:
Approx. 70-75 inches (178-190 cm) - common range for this size tractor.
Length:
Approx. 100-120 inches (254-305 cm) without implements.
Width:
Approx. 60-70 inches (152-178 cm) tread width, adjustable.
Operating Weight:
Approx. 3,000-3,500 lbs (1360-1588 kg) - without ballast.
Historical Context:
Safety standards of the era focused on mechanical integrity and operator caution; modern ratings do not apply.
Braking System:
Mechanical band brakes providing stopping power.
Steering Mechanism:
Manual steering for directional control.
Operator Station:
Open operator station, requiring operator awareness of surroundings and machinery.
Features:
No electronic infotainment systems. Focus is on mechanical controls and gauges (ammeter, oil pressure, temperature).
Features:
No electronic driver assistance features. Relies on operator skill and mechanical aids like power steering (if equipped).
Features:
No electronic connectivity features.
Engine Oil Change:
Every 50-75 operating hours or annually. Consult specific manual for exact hours.
Transmission Oil Change:
Annually or every 200-300 operating hours. Specific interval depends on usage.
Greasing:
Daily or every 10 operating hours for all grease fittings.
Engine Oil:
SAE 30 or SAE 10W-30 (depending on climate and manufacturer recommendation for the era). Refer to manual for precise grade.
Transmission Gear Oil:
API GL-4 Gear Oil, SAE 90 or SAE 80W-90 (typical for this era). Check manual for exact specification.
Coolant:
Water with Ethylene Glycol Antifreeze (50/50 mix recommended for year-round protection).
Carburetor:
Vapor lock and gumming due to fuel degradation and heat. Requires regular cleaning and adjustment.
Ignition:
Worn spark plugs, distributor cap/rotor, and points can lead to hard starting and rough running.
Cooling System:
Radiator leaks, clogged fins, and worn water pump seals are common issues requiring maintenance.
Brakes:
Brake bands can wear and require adjustment or replacement over time. Moisture can affect performance.
Clutch:
Clutch engagement issues or slippage can occur with wear on the friction disc or pressure plate.
Manufacturer:
Oliver Farm Equipment Company (later White Farm Equipment)
Founding:
Oliver was known for robust and reliable farm machinery dating back to the late 19th century.
Introduction Period:
The Oliver Model A was a popular small to medium farm tractor, likely produced in the late 1930s to early 1950s.
Significance:
Represented Oliver's entry into a competitive market for utility tractors, offering a balance of power and maneuverability.
Manufacturing Location:
Charles City, Iowa, USA (Primary Oliver Manufacturing Facility)
