Allis Chalmers B-12 Specifications

Allis Chalmers B12 Engine

Engine Model ................ Briggs and Stratton 300401
Engine Type ................ 4-Cycle, single cylinder L-head, air-cooled gasoline
Number of Cylinders ................ 1
Displacement, cu.in (L) ................ 30.2 (0.494)
Engine Bore, in (mm) ................ 3.25 (83.0)
Engine Stroke, in (mm) ................ 3.44 (87.0)
Maximum Horse Power, hp (kW) ................ 12.0 (8.9)
Rated Engine Speed, rpm ................ 3600
Fuel System ................ Carburetor
Governor ................ Mechanical (Flyweight)
Air Cleaner ................ Oiled foam
Ignition System ................ Battery
Spark Plug Type ................ Champion RCJ-8 or Autolite 245
Spark Plug Gap, in (mm) ................ 0.030 (0.76)
Valve Clearance (Intake), in (mm) ................ 0.007-0.009 (0.18-0.23)
Valve Clearance (Exhaust), in (mm) ................ 0.017-0.019 (0.43-0.48)
Fuel Tank Capacity, gal (L) ................ 1.5 (5.7)
Oil Capacity, qt (L) ................ 2.0 (1.9)

Electrical System

Electrical System Rating, Volts ................ 12
Electrical Ground ................ Negative
Charging System ................ Generator
Starter Type ................ Electric
Number of Batteries ................ 1
Battery Voltage, Volts ................ 12

AC B12 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)

Transmission Type ................ Hi-Lo
Gearbox Type ................ 6F/2R
Number of Forward Gears ................ 6
Number of Reverse Gears ................ 2
Maximum Forward Speed (High Range), mph (kph) ................ 6.0 (9.7)
Maximum Reverse Speed (High Range), mph (kph) ................ 3.0 (4.8)
Maximum Forward Speed (Low Range), mph (kph) ................ 2.2 (3.5)
Maximum Reverse Speed (Low Range), mph (kph) ................ 1.1 (1.8)

AC B12 Wheels and Tires

Drive Wheels ................ 2WD 4x2
Steering Configuration ................ Front steer
Steering System ................ Manual
Brakes Type ................ Mechanical band
Front Tire Size ................ 16x6.50-8
Rear Tire Size ................ 23-8.50x12
Front Tread Width, in (mm) ................ 30.0 (755)
Rear Tread Width, in (mm) ................ 32.0 (805)

Dimensions and Weight

Wheelbase, in (mm) ................ 44 (1110)
Length, in (mm) ................ 68.1 (1725)
Height (Steering Wheel), in (mm) ................ 37.5 (950)
Height (Hood), in (mm) ................ 33.8 (855)
Overall Width, in (mm) ................ 36.5 (920)
Ground Clearance (Front Axle), in (mm) ................ 9 (225)
Ground Clearance (Rear Axle), in (mm) ................ 6 (150)
Weight, lb (kg) ................ 680 (308)

Allis Chalmers B12 Attachments

Front End Loader

Loader Model ................ Allis Chalmers L-12
Bucket Width, in (mm) ................ 43 (1085)
Bucket Capacity (Struck), cu.ft (m3) ................ 3.5 (0.10)
Bucket Capacity (Heaped), cu.ft (m3) ................ 4.0 (0.11)
Bucket Weight, lbs (kg) ................ 93 (42)
Lifting Capacity Full Height, lbs (kg) ................ 300 (136)
Breakout Force, lbs (kg) ................ 500 (227)
Height to Bucket Hinge Pin ................ 63.5 (1600)
Maximum Clearance at Full Height, in (mm) ................ 49.5 (1250)
Reach at Maximum Height, in (mm) ................ 20 (505)
Reach at Ground Level, in (mm) ................ 35 (780)
Dump Angle, deg ................ 45
Digging Depth, in (mm) ................ 1.5 (35)
Loader Weight, lbs (kg) ................ 260 (118)

32" Mower Deck

Mower Deck Type ................ Mid-mount
Number of Blades ................ 2
Cutting Width, in (mm) ................ 32 (810)
Cutting Height, in (mm) ................ 1.0-3.5 (25-90)
Lift System ................ Manual

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