Specifications, Service and Repair of Farm and Lawn Tractors

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AC Farm Tractors / AC Garden Tractors / B10 / Big Ten / B110 / B12 / B112

Allis Chalmers B-1 Technical Data

Allis Chalmers B1 Engine

Engine Model ................ Briggs and Stratton
Engine Type ................ 4-Cycle, single cylinder L-head, air-cooled gasoline
Number of Cylinders ................ 1
Displacement, cu.in (L) ................ 18.55 (0.304)
Engine Bore, in (mm) ................ 3.00 (76.0)
Engine Stroke, in (mm) ................ 2.63 (67.0)
Maximum Horse Power, hp (kW) ................ 7.3 (5.4)
Rated Engine Speed, rpm ................ 3600
Fuel System ................ Carburetor
Governor ................ Mechanical (Flyweight)
Ignition System ................ Magneto
Air Cleaner ................ Oil bath
Fuel Tank Capacity, gal (L) ................ 1.5 (5.7)
Oil Capacity, qt (L) ................ 1.5 (1.4)

Electrical System

Electrical System Rating, Volts ................ 12
Electrical Ground ................ Negative
Charging System ................ Generator
Starter Type ................ Electric
Battery Voltage, Volts ................ 12

AC B1 Power Take-Off

Front PTO Operational Type ................ Live
Rear PTO Operational Type ................ Live
Mid PTO Operational Type ................ Live

Transmission Configuration

Transmission Type ................ Shaft-driven gear
Gearbox Type ................ 3F/1R, gear
Number of Forward Gears ................ 3
Number of Reverse Gears ................ 1
Oil Capacity, qt (L) ................ 1.5 (1.4)
Maximum Forward Speed, mph (kph) ................ 6.0 (9.7)
Maximum Reverse Speed, mph (kph) ................ 3.0 (4.8)

AC B1 Wheels and Tires

Drive Wheels ................ 2WD 4x2
Steering Configuration ................ Front steer
Steering System ................ Manual
Brakes Type ................ Mechanical band
Front Tire Size ................ 4.80x8
Rear Tire Size ................ 6.00x12
Front Tread Width, in (mm) ................ 26.0 (655)
Rear Tread Width, in (mm) ................ 26.0 (655)

Dimensions and Weight

Wheelbase, in (mm) ................ 44 (1110)
Length, in (mm) ................ 68 (1720)
Height (Steering Wheel), in (mm) ................ 37.3 (940)
Height (Hood), in (mm) ................ 33.4 (845)
Overall Width, in (mm) ................ 34.3 (860)
Ground Clearance (Front Axle), in (mm) ................ 9 (225)
Ground Clearance (Rear Axle), in (mm) ................ 6 (150)
Weight, lb (kg) ................ 600 (272)

Allis Chalmers B1 Attachments

42" Mower Deck

Mower Deck Type ................ Mid-mount
Number of Blades ................ 2
Cutting Width, in (mm) ................ 42 (1060)
Cutting Height, in (mm) ................ 1.0-3.5 (25-90)
Lift System ................ Manual

Front End Loader

Bucket Width, in (mm) ................ 33 (830)
Bucket Capacity (Struck), cu.ft (m3) ................ 2.5 (0.07)
Bucket Capacity (Heaped), cu.ft (m3) ................ 3.0 (0.08)
Bucket Weight, lbs (kg) ................ 65 (29.5)
Lifting Capacity Full Height, lbs (kg) ................ 300 (136)
Lifting Capacity at Ground Level, lbs (kg) ................ 500 (227)
Maximum Clearance at Full Height, in (mm) ................ 55.5 (1400)
Reach at Maximum Height, in (mm) ................ 18 (450)
Dumping Height, in (mm) ................ 44 (1110)
Reach at Ground Level, in (mm) ................ 31 (780)
Dump Angle, deg ................ 45
Digging Depth, in (mm) ................ 1.5 (35)
Loader Weight, lbs (kg) ................ 220 (100)

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ALLIS CHALMERS TRACTORS SPECIFICATIONS

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INTERNATIONAL HARVESTER TRACTORS SPECS

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