Overview
The Hefty Hi-G is a high-clearance farm tractor produced in Juneau, Wisconsin, between 1974 and 1978. It features a two-wheel-drive chassis with engine options rated at 27 hp in both gasoline and diesel configurations. The tractor is listed with a ground clearance ranging from 36 to 48 inches and an adjustable wheelbase of 76 to 90 inches.
Ideal Applications
Engine Specifications:
The tractor is equipped with either a 0.8L four-cylinder Continental gasoline engine or a 1.2L two-cylinder Mitsubishi diesel engine, both rated at 27 hp.
Adjustable Chassis Dimensions:
Ground clearance is specified at 36 inches with options up to 48 inches, while the front axle configuration allows for a wheelbase range of 76 to 90 inches.
Mechanical and Hydraulic Systems:
The mechanical layout includes a 6-speed gear transmission, manual steering, and an open center hydraulic system providing 3.5 gpm of flow at 1500 psi.
Production
| Description | High-Clearance tractor / Built in Juneau, Wisconsin, USA |
|---|---|
| Manufacturer | Hefty |
Engine
| Bore/Stroke | 2.28x3.14 inches (58 x 80 mm) / 3.54x3.86 inches (90 x 98 mm) |
|---|---|
| Description | Continental R800-46 / gasoline / 4-cylinder / liquid-cooled / Mitsubishi / diesel / 2-cylinder / liquid-cooled |
| Displacement | 51.6 ci (0.8 L) / 76 ci (1.2 L) |
| Power | 27 hp (20.1 kW) / 27 hp (20.1 kW) |
| Starter | electric / electric |
| Starter volts | 12 / 12 |
| Engine type | Continental 0.8L 4-cyl gasoline / Mitsubishi 1.2L 2-cyl diesel |
| Engine type | Continental 0.8L 4-cyl gasoline / Mitsubishi 1.2L 2-cyl diesel |
Transmission
| Clutch | mechanical dry disc |
|---|---|
| Gears | 6 forward and 1 reverse |
| Transmission type | 6-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Mechanical dry disc brakes |
| Drive type | Two-wheel drive |
Hydraulics
| Pressure | 1500 psi (103.4 bar) |
|---|---|
| Pump flow | 3.5 gpm (13.2 lpm) |
| Type | open center |
Electrical
| Battery volts | 12 |
|---|---|
| Ground | negative |
Dimensions & Tires
| Ground clearance | 36 inches*Optional configurations allowed for a ground clearance up to 48 inches. (91 cm) |
|---|---|
| Height (steering wheel) | 82 inches (208 cm) |
| Length | 125 inches*At closest wheelbase setting. (317 cm) |
| Weight | 2950 lbs (1338 kg) |
| Wheelbase | 76 inches*Multiple position front axle allowed for a wheelbase range of 76 to 90 inches. (193 cm) |
| Front tire | 5.00-15 |
| Rear tire | 9.5-24 |
| Weight | 2950 lbs (1338 kg) |
| Wheelbase | 76 inches*Multiple position front axle allowed for a wheelbase range of 76 to 90 inches. (193 cm) |
| Ag front | 5.00-15 / 6.50-16 |
| Ag rear | 9.5-24 / 11.2-24 |
References
| Description | Hi-G - High Clearance Nursery Tractor published by Hefty |
|---|
Speeds
| Description | With 12.4-28 rear tires. |
|---|