The Ford 861 Powermaster is a 2WD utility tractor from the 801 Powermaster series. This tractor was manufactured by Ford in Highland Park, Michigan, USA from 1958 to 1962.
The Ford 861 Powermaster is equipped with one of two engines: a 2.8 L (172.0 cu·in) four-cylinder gasoline/LP-gas engine or a 2.8 L (172.0 cu·in) four-cylinder diesel engine and a unsynchronized gear transmission with 5 forward and 1 reverse gears and dry disc clutch.
The tractor could be equipped with the following engines:
- Ford EAF. It is a 2.8 L, 2,819 cm2, (172.0 cu·in) four-cylinder natural aspirated gasoline/LP-gas engine with 99.0 mm (3.9 in) of the cylinder bore and 91.0 mm (3.58 in) of the piston stroke. The compression ratio rating is 7.5:1 for gasoline version or 8.65:1 for LP-gas version. This engine produced 63.5 PS (46.7 kW; 62.6 HP) at 2,000 rpm of output power.
- Ford. It is a 2.8 L, 2,819 cm2, (172.0 cu·in) four-cylinder natural aspirated diesel engine. The cylinder bore is 99.0 mm (3.9 in) and the piston stroke is 91.0 mm (3.58 in). The compression ratio rating is 16.8:1. This engine produced 57.1 PS (42.0 kW; 56.3 HP) at 2,200 rpm of output power.
The Ford 861 Powermaster is equipped with manual or power assist (optional) steering, differential mechanical expanding shoe brakes, an open operator station and 64.3 liters (17 US gal.; 14.1 Imp. gal) fuel tank.
Ford 801 Powermaster series tractor variants:
- 961 Row-crop chassis
- 811 Select-O-Speed, no PTO
- 821 Four-speed, no PTO or 3-point
- 841 Four-speed
- 851 Five-speed
- 861 Five speed, live PTO
- 871 Select-O-Speed
- 881 Select-O-Speed, dual-speed PTO
Ford 861 Powermaster Specifications
| General Specifications | |
| Model | Ford 861 Powermaster |
| Length | 3,060 mm (120.5 in) |
| Width | 1,620 mm (63.8 in) |
| Height | 1,450 mm (57.1 in) |
| Wheel base | 1,890 mm (74.4 in) |
| Ground clearance (front axle) | 540 mm (21.3 in) |
| Weight (operating) | 1,560 kg (3,439 lbs) |
| Fuel tank capacity | 64.3 liters (17 US gal.; 14.1 Imp. gal) |
| Battery | 6V (Gasoline/Lp-gas), 12V (Diesel) |
| Cabin type | Open operator station |
| Engine | |
| Engine model | Ford EAF |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Gasoline/LP-gas |
| Displacement | 2.8 L, 2,819 cm2, (172.0 cu·in) |
| Bore and stroke | 99.0 mm X 91.0 mm (3.9 in X 3.58 in) |
| Compression ratio | 7.5:1 |
| Horsepower | 63.5 PS (46.7 kW; 62.6 HP) at 2,000 rpm |
| Torque | 225.1 N·m (23 kg·m, 165.9 ft·lb) at 1,600 rpm |
| Starter | Electric |
| Oil capacity: | 4.7 L (5 US. qt, 4.1 Imp. qt.) |
| Coolant capacity: | 14.2 L (15 US. qt, 12.5 Imp. qt.) |
| Engine | |
| Engine model | Ford |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Diesel |
| Displacement | 2.8 L, 2,819 cm2, (172.0 cu·in) |
| Bore and stroke | 99.0 mm X 91.0 mm (3.9 in X 3.58 in) |
| Compression ratio | 16.8:1 |
| Horsepower | 57.1 PS (42.0 kW; 56.3 HP) at 2,200 rpm |
| Torque | 190.4 N·m (19.4 kg·m, 140.3 ft·lb) at 1,400 rpm |
| Starter | Electric |
| Oil capacity: | 4.7 L (5 US. qt, 4.1 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual or power assist (optional) |
| Brakes | Differential mechanical expanding shoe |
| Transmission model | Ford |
| Transmission type | Unsynchronized gear with dry disc clutch |
| Gears | 5 forward and 1 reverse |
| Speed | Forward: 19.2 kmh (11.9 mph) Reverse: 6.3 kmh (3.9 mph) |
| Transmission oil capacity | 7.6 L (2 US. gal, 1.7 Imp. gal.) |
| Tires | |
| Front tires | Ag: 6.00×16 |
| Rear tires | Ag: 12×28, 13.6×28 |
| Three-Point Hitch | |
| Category | I |
| Control type | – |
| Lift capacity | 567 kg (1,250 lbs) |
| PTO (Power take-off shaft) | |
| Rear PTO type | Live |
| Rear PTO speed | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Hydraulic capacity | 7.6 L (2 US. gal, 1.7 Imp. gal.) |
| Pressure | 2000 psi (137.9 bar) |
| Total flow | 4.0 gpm (15.1 lpm) |
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