Tractor Segment:
Light utility tractor, popular for small farms and general-purpose work
Key Competitors:
Ford 801 series, John Deere 3010, Massey Ferguson 35
Engine Type:
Gasoline (standard), Diesel (optional, depending on specific D-14 variant)
Transmission Type:
Constant mesh, gear transmission
Hydraulic System:
Independent hydraulic system, often with "Case-O-Matic" drive option
Pto Type:
Live PTO (Power Take-Off)
Engine Service:
Complete overhaul, disassembly, assembly, tuning, diagnostics
Fuel System:
Carburetor service, fuel pump, fuel lines, filters
Cooling System:
Radiator, water pump, thermostat, fan, coolant specifications
Ignition System:
Distributor, spark plugs, ignition timing, coil
Lubrication System:
Oil pump, oil filter, lubrication points, oil capacities
Transmission Service:
Disassembly, assembly, maintenance, troubleshooting of main transmission and PTO
Clutch System:
Clutch operation, adjustment, replacement
Hydraulic System:
Hydraulic pump, control valve, cylinders, fluid specifications, troubleshooting
Steering System:
Steering gearbox, linkage, adjustments
Braking System:
Brake mechanisms, adjustment, maintenance, troubleshooting
Electrical System:
Wiring diagrams, starter, generator/alternator, battery, lighting, instrumentation
Front Axle And Steering:
Front axle components, kingpins, tie rods
Rear Axle And Drive:
Rear axle components, differential, final drives
Power Takeoff Pto:
PTO drive, engagement, maintenance
Hitches And Drawbars:
Three-point hitch operation, drawbar specifications
Bodywork And Frame:
Frame components, sheet metal repair, mounting hardware
Diagnostic Procedures:
Troubleshooting guides for common and uncommon issues
Repair Procedures:
Step-by-step instructions for component removal, installation, and overhaul
Maintenance Procedures:
Regular service tasks, lubrication, fluid changes
Adjustment Procedures:
Detailed instructions for setting clearances, timing, and linkages
Torquing Specifications:
Precise torque values for critical fasteners
Depth Of Coverage:
Comprehensive: Covers routine maintenance to complete engine and transmission rebuilds
Engine Make:
Allis-Chalmers
Engine Model Gas:
Allis-Chalmers G-149 (4-cylinder, gasoline)
Engine Model Diesel:
Allis-Chalmers 201D (4-cylinder, diesel) - potentially available on later or specific configurations
Displacement Gas:
149 cubic inches (approx. 2.45 liters)
Horsepower Gas Rated Pto:
Approx. 40-45 PTO HP (may vary slightly)
Horsepower Gas Rated Drawbar:
Approx. 35-40 Drawbar HP (may vary slightly)
Torque Gas:
Refer to specific engine manual or WSM for detailed torque figures
Carburetor Type:
Typically Zenith or Marvel-Schebler single-barrel carburetor
Fuel Type:
Gasoline (regular unleaded)
Fuel Pump Type:
Mechanical fuel pump
Transmission Type:
6-speed manual (4 forward, 2 reverse) in a constant mesh gearbox
Optional Drive:
Possibility of "Case-O-Matic" automatic drive or torque converter options in some configurations
Gear Selection:
Shifter for selecting gears, range selector
Transmission Fluid Type:
API GL-4, SAE 90 gear oil (verify in manual for exact specification)
Wheelbase:
Approx. 76 inches (1930 mm)
Length:
Approx. 120 inches (3048 mm) without implements
Width:
Approx. 68 inches (1727 mm) at rear tread
Shipping Weight:
Approx. 3,000 lbs (1361 kg)
Operating Weight:
Approx. 3,300-3,500 lbs (1497-1588 kg) depending on configuration
Engine Oil Change:
Typically every 50-100 operating hours (refer to manual for exact interval)
Oil Filter Change:
Change with every engine oil change
Air Filter Cleaning:
Service air cleaner element regularly, especially in dusty conditions
Transmission Fluid Change:
Typically every 500-1000 operating hours (refer to manual)
Engine Oil Type:
API CD or SE/SF service classification, SAE 30 or 10W-30 (verify in manual based on temperature)
Engine Oil Capacity:
Approx. 5 quarts (4.7 liters) with filter (verify in manual)
Coolant Type:
Permanent type antifreeze mixed with water (50/50 ratio recommended)
Hydraulic Fluid Type:
Allis-Chalmers hydraulic fluid or equivalent (check manual for specifications like viscosity)
Common Wear Items:
Clutch wear, hydraulic cylinder seals, carburetor issues, starter/generator problems
Electrical Reliability:
Older wiring harnesses can be prone to degradation; ignition system maintenance is crucial.
Allischalmers Legacy:
Allis-Chalmers was a prominent American manufacturer of agricultural and industrial machinery, known for innovation and distinctive orange tractors.
D Series Lineage:
Part of the highly successful 'D' series line, succeeding models like the D-12 and preceding the D-17.
Production Years:
Introduced around 1956/1957, production ran into the early 1960s.
Manufacturing Location:
Manufactured by Allis-Chalmers in the United States.
