Gravely lawn tractors
Gravely 8129
The Gravely 8129 is a 1980 garden tractor from the 8000 Series by Gravely. It features a 12 hp Kohler K301 476cc 1-cylinder air-cooled gasoline engine, an 8-speed gear transmission, and hydraulic lift. The tractor has two-wheel drive, manual steering, mechanical band brakes, and an open operator station. It includes an open center hydraulic system with 1200 psi pressure and 1.7 gpm pump flow. The mid PTO is independent with a mechanical clutch and 1000 type. Dimensions include a 52 inch wheelbase, 890 lbs weight, and tires sized 16x6.50-8 front and 23x8.50-12 rear. Electrical system has a 12 volt negative ground battery with 42 AH capacity.
Power12 hp
Founded-
Model8129
Technical Specifications
Detailed specifications and technical data for Gravely 8129
Engine
| Type | gasoline |
|---|---|
| Model | Kohler K301 |
| Power | 12 hp (8.9 kW) |
| Cooling | air-cooled horizontal-shaft |
| Starter | electric |
| Cylinders | 1-cylinder |
| Fuel tank | 5.3 gal (20.1 L) |
| Bore/Stroke | 3.375x3.25 inches (86 x 83 mm) |
| Displacement | 476 cc (29.07 ci) |
| Starter volts | 12 |
Variants
| 8128 | mechanical lift |
|---|---|
| 8129 | hydraulic lift |
Electrical
| Ground | negative |
|---|---|
| Battery AH | 42 |
| Battery volts | 12 |
Hydraulics
| Type | open center |
|---|---|
| Pressure | 1200 psi (82.7 bar) |
| Pump flow | 1.7 gpm (6.4 lpm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical band brakes |
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Type | Garden tractor |
|---|---|
| Year | 1980 |
| Series | 8000 Series |
| Manufacturer | Gravely |
Transmission
| Type | 8-speed gear |
|---|
Dimensions & Tires
| Weight | 890 lbs (403 kg) |
|---|---|
| Rear tire | 23x8.50-12 |
| Wheelbase | 52 inches (132 cm) |
| Front tire | 16x6.50-8 |
Power Take-off (PTO)
| Clutch | mechanical |
|---|---|
| Mid PTO | independent |
| Mid PTO Type | 1000 |