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Specifications


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Engine
Kohler 4 cycle, single cylinder, air cooled.

Horsepower (kW):
710 10-hp (7.5), 712 12-hp (9.0)
716 16-hp (11.9) (Engine Mfg. ratings)

Starting
Key start, gear drive starter, 12 volt
45 ampere-hour battery

Fuel capacity
3 U.S. Gal. (11.4 litres)

Transmissions
710 and 716 6-Speed; Manual -- 6 forward, 2 reverse speeds
712 Shuttle; Semi-automatic -- 4 speeds with instant forward/reverse without clutching
712 and 716 Hydro; Hydrostatic drive -- single lever forward and reverse plus variable control of ground speed

All three transmissions have controlled traction with limited slip differential

Speeds

Manual 6-Speed Trans:

Gear 

High
mph (km/h)

Low 
mph (km/h)
1.6 (2.6) 0.7 (1.1)
3.7 (6.0) 1.7 (2.7) 
6.1 (9.8) 2.8 (4.5) 
Rev.  3.2 (5.2) 1.5 (2.4)

Shuttle Drive:

Gear Forward and Reverse
mph (kin/h)
.96 (1.5)
2.3 (3.7)
3.7 (6.0)
5.1 (8.2)


Hydrostatic Drive: Continuous range
Forward--0 to 7 mph (11.3 km/h) 
Reverse--0 to 4 mph (6.4 km/h).

PTO drive
Center and Rear from cone clutch; Front from engine crankshaft

Clutch/brake
Single pedal disengages clutch then applies brake; separate parking brake lever

Tires
710 6-Speed  -- 23-8.50X12 rear, 4.80/4.00X8 front
712 Shuttle and Hydro -- 23-8.50X12 rear, 16-6.50X8 front
716 6-Speed and Hydro -- 23.10.50X12 rear, 16-6.50X8 front

Dimensions
Height (max): 39" (997 mm)
Length: 67" (1702 mm)
Width: 37" (953 mm)
Wheelbase: 48.1" (1222 mm)
Turning radius: 30" (775 mm) (inside of rear tire)

Approx shipping weights
710 6-Speed -- 750 lbs (364 kg)
712 Shuttle -- 812 lbs (368 kg)
712 Hydro -- 803 lbs (365 kg)
716 6-Speed -- 770 lbs (349 kg)
716 Hydro -- 806 lbs (366 kg).

Standard equipment
Front dual headlights, manual lift lever, balanced engine, tilt-up hood and seat deck, deluxe contour seat, fuel gauge, ammeter, safety interlock start system, drawbar, dry element air cleaner w/precleaner, oil filter (hydro models), 12-volt electric start.

[Source:  1977 AC Brochure:  Allis-Chalmers the Beautiful Difference In Lawn and Garden Tractors, Form No. 1222-OP-76, courtesy of John Boesch]

 

 

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