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Specifications:  AC Model 712S Tractor

Engine

Kohler, Model K301S

 

Capacities

Type

4 cycle, single cylinder, air cooled

 

Engine crank case

2 quarts

Horsepower

12

 

Fuel tank

3 gallons

Bore and Stroke

3.38” X 3.25”

 

Transmission

4.5 pints SAE 90

Displacement

29.07 cubic inches

 

Bevel Gear Housing

Fill to end of dipstick SAE 90

RPM

3600 RPM at Rated Horsepower

 

Crankshaft Balanced - 1" Diameter with 1/4" Keyway Dimensions
Starter Gear Driven Electric Starter Height @ Steering Wheel 39.25"

Governor

Mechanical flyweight with external adjustment

 

Height @ Instrument Panel 35.5"

Electrical System

 

15 AMP, Flywheel Alternator, Solid State Regulator-Rectifier

 

Width Overall 37.5"

Ignition System

Battery Ignition with Breaker Points

Length Overall

67.0

Battery

Allis Chalmers, 45 AMP Hour

 

Wheel Tread - Front

29.0”

Air Cleaner

 

Replaceable Dry Element

 

Wheel Tread - Rear

27.0”

Ground Drive Clearance - Front Axle 8.0"
Clutch Foot Operated V-Belt Clutch Between Engine and Transmission Wheel Base 48.1"

Transmission

Differential Shuttle Clutch Drive with Forward/Reverse Control to Sliding Spur Gear Transmission

 

Turning Radius

30.5" to inside of rear tire”

Speeds @ 3600 RPM First
Second
Third
Fourth
Reverse
0.96 MPH
2.3 MPH
3.7 MPH
5.1 MPH
Same as above

Differential

Planetary Spur Gear - Controlled Traction

 

Implement Lift Manual Lift Standard. Electric Lift Available for Field Installation.

Steering

Bevel Gear - Spindle Lever Type Linkage - 4.66:1 STEERING GEAR RATIO - 4.14 OVERALL RATIO

 

Center PTO Mechanical Cone Clutch and Belt Drive to Center and Rear Mounted Implements is Standard.

Brakes

Drum and Band on Transmission Shaft - Foot Operated; Cam Lever Parking Brake - Hand Operated

 

Head Lights Standard

Tire Size & Pressure

 

Rear

23-8.50 X 12 (8 PSI) on later models; 23-10.50 X 12 (8 PSI) on earlier models

 

Front

16-6.50 X 8 (10 PSI)

 

 

Source:  AC Operator's Manual, MODELS 710 - 712S - 712H -716H Lawn & Garden Tractor, Part Number 1656140, November 1975.  Also, AC Operator's Manual, MODELS 710-6 Speed,  712S,  712H,  716-6 Speed, 716H and 718H Lawn & Garden Tractors, Part Number 1664443, February 1978.

 

 

 

 

 

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