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ENGINE

Two cylinders, horizontally opposed: 4-cycle.  3Ό" (82.6 mm) bore,  3" (76.2 mm) stroke; 49.8 cu. in. (816 cm3 piston displacement; compression ratio 7.0 to 1. 19.5 hp (14.5 kW) maximum at 36O0 RPM. Onan model CCKB engine. Lubrication system — full pressure gear lube oil pump. Oil filter — full flow cartridge type. Air cleaner — dry type with replaceable element.


STEERING

Automotive type ball screw manual steering gear.


ELECTRICAL SYSTEM

12 volt. 45 amp hr. battery; 20 amp flywheel alternator with solid state regulator/rectifier.

POWER TRAIN

Clutch — Belt driven main drive — foot pedal operated.
Hydrostatic transmission, variable displacement piston pump — fixed displacement piston motor
3 speed range sliding gear transaxle

DIFFERENTIAL

8-pinion spur pear limited-slip differential mounted on final drive pinion shafts, individual bull gears and pinions for each axle, enclosed in separate housings.

REAR AXLES

Flange welded steel, live axles. mounted on tapered roller bearings

GROUND SPEEDS

MPH with turf tires at 3600 RPM ENGINE SPEED

Range Forward Reverse
Low 0 - 4.2 mph 0 - 2.6 mph
  (6.8 km/h) (4.2 km/h)
Medium 0 - 6.3 mph 0 - 4.0 mph
  (10.1 km/h) (6.4 km/h)
High 0 - 10.1 mph 0 - 6.2 mph
  (16.7 km/h) (10.0 km/h)


 HYDRAULIC LIFT SYSTEM

Hydraulically powered lift system to raise mid-mounted equipment
Pump — 2.5 GPM at 500 PSI (9 5 litres/mm @ 3447 kPa)
Valve — 2 spool valve for independent control of front cylinder with quick disconnect adapter at front only
Cylinder — 2.5” dia.x 4" (63.5 mm x 101.6 mm) stroke double acting
Front Couplers— Quick disconnect adaptors
Tubes and hardware

LIGHTS

Two sealed beam head lamps mounted in rear fenderss

ATTACHMENT DRIVE

PTO FRONT. Independent power take off at front, electrically actuated, with automatic brake
PTO REAR.  Independent power take off at rear of tractor controlled by electric clutch, actuated by switch. (Optional on 720 Special.)

THREE POINT HITCH SYSTEM

Size category "0’’ with exception of 12" (304.8 mm) mast height. Lift capacity meets ASAE recommended specifications. (Optional on 720 special.)

BRAKES

Individual disc brakes located on differential output shafts. Foot pedal operated with suspended pedals and parking lock lever.

TRACTOR DIMENSIONS

with 29 x 12-15 turf and 20 x 8.0O x 1O turf tires
Wheelbase — 56" (1122 mm)
Length overall — 85" (2159 mm)
Width overall — 50" (1270 mm)
Height over steering wheel — 48” (1219 mm)
Ground clearance (under front axle) —15” (381 mm)
Turning radius, no brake, feet outside front wheel — 8' (2438 mm)
Turning radius, braking, feet outside front wheel — 6' (1829 mm)
Turning radius, inside rear wheel — 36” (914 mm)
Tread adjustable (4.00-12 front & 8.00-16 rear only):
    Front 40Ό" and 45Ύ" (1022 mm) x 1162 mm)
    Rear 34’" and 38½” (864mm and 978 mm)
Drawbar height — 13" (330 mm)
Liquid capacities:
   Fuel tank, gallons — 3.8 (4.4 litres)
   Engine crankcase, quarts — 3.5 (3.3 litres)
   Transmission, quarts (tractor hyd. system) — 5.0 (4.7 litres)
   Axle housing each, quarts— .5 (0.47 litre)

WEIGHTS

Shipping Weights — (720) 1300 lbs. (590.9 kg) with turf tires and 3 point hitch; (720 Special) 1235 lbs. (561.3 kg) with turf tires
Operating weight without ballast, full of fuel, with operator:
   Front 480 lb. (218 kg)
   Rear 1.000 lb. (454 kg)
   Total 1.480 lb. (671 kg)

TIRE OPTIONS

Front 20 x 8.00-10, 2-ply, Turf tread
Front 6.00 x 9, 4-ply, Rib tread
Front 4.00-12, 2-ply, Ag-Rib tread
Rear 31 x 15.5 - 15, Hi Flotation
Rear 29.12-15, 2-ply, Turf
Rear 8.00-16, 2-piy, Agricultural

ATTACHMENTS

60" (1.52 m) Rotary Mower with hitch
57" (1.49 m) Sickle Bar with hitch
60" (1.52 m) Dozer Blade with hitch
52" (1.32 m) Snow Blower with hitch
Cultivator (Requires 3-point hitch)
12" (304.8 mm) Plow (Requires 3-point hitch)
60" (1.52 m) Rear Mounted Blade (Requires 3-point hitch)
Front End Loader with bucket and weight box
48" (1.22 m) and 60” (1.52 m) Rear Mower (with rear PTO)
Weights:
    Front Weight -- use with front bumper
    Rear Wheel Weights
Tire Chains (fit all rear tire options)
Front Bumper
540 PTO Attachment
2000 RPM Rear PTO (Standard on 720 — Optional on 720 Special)
Category "0" 3-point Hitch (Standard on 720 — Optional on 720 Special)

 

[Source: AC Brochure, Form No 1254-OP-8003-R, courtesy of Matthew Snyder]

 

 

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