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Allis Chalmers 712H Engine
Engine Model ……………. Kohler K301
Engine Type ……………. 4-Cycle, one cylinder air-cooled gasoline
Number of Cylinders ……………. Single
Displacement, cu.in (L) ……………. 29.1 (0.476)
Engine Bore, in (mm) ……………. 3.37 (85.6)
Engine Stroke, in (mm) ……………. 3.25 (82.6)
Maximum Horse Power, hp (kW) ……………. 12.0 (9.0)
Rated Engine Speed, rpm ……………. 3600
Fuel System ……………. Carburetor
Carburetor Model ……………. Kohler/Walbro
Carburetor Type ……………. Fixed main jet or adjustable main jet
Lubrication System ……………. Splash type
Cooling System ……………. Forced-air
Valve Clearance (Intake), in (mm) ……………. 0.0079-0.0099 (0.20-0.25)
Valve Clearance (Exhaust), in (mm) ……………. 0.0169-0.0189 (0.43-0.48)
Spark Plug Type ……………. Champion RH10
Spark Plug Size, in (mm) ……………. 0.553 (14.0)
Spark Plug Gap, in (mm) ……………. 0.0256 (0.65)
Breaker Point Gap (Nominal), in (mm) ……………. 0.020 (0.50)
Fuel Tank Capacity, gal (L) ……………. 3.0 (11.4)
Oil Capacity, qt (L) ……………. 2.02 (1.90)
Electrical System
Electrical System Rating, Volts ……………. 12
Electrical Ground ……………. Negative
Charging System ……………. Flywheel alternator
Alternator Rating, Amps ……………. 15
Starter Type ……………. Electric
Number of Batteries ……………. 1
Battery Voltage, Volts ……………. 12
Battery Rating, Ah ……………. 45
AC 712H Power Take-Off
Mid PTO Operational Type ……………. Independent
Mid PTO Clutch ……………. Manual
Mid PTO Speed, rpm ……………. 3600
Transmission Configuration
Transmission Type ……………. Belt-driven hydrostatic
Number of Forward/Reverse Gears ……………. Infinite
Pump Type ……………. Variable displacement, reversible piston pump
Motor Type ……………. Fixed displacement piston motor
Oil Capacity, qt (L) ……………. 3.0 (2.8)
Maximum Forward Speed, mph (kph) ……………. 7.0 (11.3)
Maximum Reverse Speed, mph (kph) ……………. 4.0 (6.4)
AC 712H Wheels and Tires
Drive Wheels ……………. 2WD 4×2
Steering Configuration ……………. Front steer
Steering System ……………. Manual
Brakes Type ……………. Drum
Front Tire Size ……………. 16-6.50×8
Rear Tire Size ……………. 23-8.50×12
Rear Tire Size ……………. 23-10.5×12
Front Tread Width, in (mm) ……………. 30.0 (760)
Rear Tread Width, in (mm) ……………. 27.0 (680)
Dimensions and Weight
Wheelbase, in (mm) ……………. 48.1 (1220)
Length, in (mm) ……………. 67 (1700)
Height, in (mm) ……………. 39.3 (990)
Overall Width, in (mm) ……………. 37.5 (870)
Ground Clearance, in (mm) ……………. 8 (200)
Weight, lb (kg) ……………. 805 (365)
AC 712H Attachments
42-in Mower Deck
Mower Deck Type ……………. Mid-mount
Number of Blades ……………. 3
Cutting Width, in (mm) ……………. 42 (1060)
Cutting Height, in (mm) ……………. 1.0-4.0 (25-101)
Lift System ……………. Manual or electric
48-in Mower Deck
Mower Deck Type ……………. Mid-mount
Number of Blades ……………. 3
Cutting Width, in (mm) ……………. 48 (1210)
Cutting Height, in (mm) ……………. 1.0-4.0 (25-101)
Lift System ……………. Manual or electric
36-in Snow Blower
Snowblower Type ……………. Front-mount
Clearing Width, in (mm) ……………. 36 (910)
Drive Type ……………. Belt
Lift System ……………. Manual or electric
42-in Snow Blower
Snowblower Type ……………. Front-mount
Clearing Width, in (mm) ……………. 42 (1060)
Drive Type ……………. Belt
Lift System ……………. Manual or electric
42-in Front Blade
Blade Type ……………. Front-mount
Width, in (mm) ……………. 42 (1060)
Lift System ……………. Manual or electric
Angle ……………. Manual
46-in Front Blade
Blade Type ……………. Front-mount
Width, in (mm) ……………. 46 (1160)
Lift System ……………. Manual or electric
Angle ……………. Manual