International Harvester 634 Specs ( 1968-1972 )
Production
| Description | Built in Doncaster, England |
|---|---|
| Manufacturer | International Harvester |
| Total built | 3,848 |
Engine
| Engine type | International Harvester 4.6L 4-cyl diesel |
|---|---|
| Fuel tank | 20.4 gal (77.2 L) |
| Bore/Stroke | 4.125x5.25 inches (105 x 133 mm) |
| Description | International Harvester BD-281 / diesel / 4-cylinder / liquid-cooled |
| Displacement | 281 ci (4.6 L) |
| Power | 66 hp (49.2 kW) |
| Rated RPM | 1600 |
| Starter volts | 12 |
| Torque | 225 lb-ft (305.1 Nm) |
| Torque RPM | 1000 |
| PTO (claimed) | 59.3 hp (44.2 kW) |
Transmission
| Clutch | 330mm dry disc |
|---|---|
| Gears | 8 forward and 2 reverse |
| Transmission type | 8-speed |
Mechanical
| 2WD Steering | manual |
|---|---|
| 4WD Steering | power |
| Cab | Open operator station. Cab optional. |
| Description | Mechanical disc brakes |
| Drive | 4x2 2WD |
Hydraulics
| Pressure | 2500 psi (172.4 bar) |
|---|---|
| Pump flow | 10.4 gpm (39.4 lpm) |
| Steering flow | 4.8 gpm (18.2 lpm) |
| Steering press. | 1500 psi (103.4 bar) |
Hitch
| Control | position and draft control |
|---|---|
| Rear lift | 3360 lbs (1524 kg) |
| Rear Type | II |
PTO
| Engine RPM | 540@1458 |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery AH | 95 |
|---|---|
| Battery volts | 12 |
| Charging system | generator |
Dimensions & Tires
| 2WD Front tread | 52 to 61 inches (132 to 154 cm) |
|---|---|
| 2WD Length | 138 inches (350 cm) |
| 2WD Rear tread | 56 to 72 inches (142 to 182 cm) |
| 2WD Wheelbase | 86.8 inches (220 cm) |
| 4WD Front tread | 53 to 66 inches (134 to 167 cm) |
| 4WD Length | 139 inches (353 cm) |
| 4WD Rear tread | 56 to 72 inches (142 to 182 cm) |
| 4WD Wheelbase | 86.8 inches (220 cm) |
| AWD Front tread | 60 to 80 inches (152 to 203 cm) |
| AWD Length | 150 inches (381 cm) |
| AWD Rear tread | 60 to 80 inches (152 to 203 cm) |
| AWD Wheelbase | 75 inches (190 cm) |
| Height (cab) | 96 inches (243 cm) |
| Width | 65.5 inches (166 cm) |
| 2WD Rear tire | 11-38 |
| 2WD Wheelbase | 86.8 inches (220 cm) |
| 4WD Wheelbase | 86.8 inches (220 cm) |
| AWD Wheelbase | 75 inches (190 cm) |
| Front tire | 7.50-16 |
| Weight | 6546 to 9574 pounds |
| 2WD Standard tires (ag) | Front: 7.50-16. Rear: 11-38 |
| 4WD Standard tires (ag) | Front: 10-24. Rear: 12-38 |
| AWD Standard tires (ag) | Front: 14-30. Rear: 14-30 |
International Harvester 634 Weight
| 2WD Operating | 6546 lbs (2969 kg) |
|---|---|
| 4WD Operating | 7694 lbs (3489 kg) |
| AWD Operating | 9574 lbs (4342 kg) |
References
| Description | The Roar of Dust and Diesel - A Story of International Harvester Doncaster by Mike Teanby / 634 Diesel Tractors published by International Harvester |
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