Allis Chalmers
Allis Chalmers HD14
The Allis Chalmers HD14 is a crawler tractor built from 1939 to 1947 in Springfield, Illinois, USA. It features a General Motors 7.0L 6-cylinder diesel engine and was produced in a total of 6,405 units. The tractor offers a 6-speed sliding gear transmission or a 3-speed torque converter variant (HD14C). It delivers a drawbar power of approximately 127 hp and belt power of 145 hp. The HD14 has a crawler drive with an open operator station and weighs between 28,750 and 29,330 pounds depending on the variant. It rides on 22-inch wide tracks and has dimensions of 165 inches length, 92 inches width, and 80 inches height.
Power161 hp[B]
Founded1939 - 1947
ModelHD14
Technical Specifications
Detailed specifications and technical data for Allis Chalmers HD14
Power
| Belt (tested) | 145.39 hp (108.4 kW) |
|---|---|
| Belt (claimed) | 145 hp (108.1 kW) |
| Drawbar (tested) | 126.98 hp (94.7 kW) |
| Drawbar (claimed) | 127 hp (94.7 kW) |
Engine
| Type | blower diesel |
|---|---|
| Model | General Motors 6-71 |
| Cooling | liquid-cooled 2-cycle vertical I-head |
| Cylinders | 6-cylinder |
| Fuel tank | 68 gal (257.4 L) |
| Rated RPM | 1500 |
| Bore/Stroke | 4.25x5.00 inches (108 x 127 mm) |
| Compression | 16.0:1 |
| Displacement | 426 ci (7.0 L) |
| Oil capacity | 14 qts (13.2 L) |
| Starter volts | 12 |
| Coolant capacity | 48 qts (45.4 L) |
Tracks
| Width | 22 inches (55 cm) |
|---|---|
| Area on ground | 3759 in² (2.4 m²) |
| Ground pressure | 7.39 psi (0.5 bar) |
| Length on ground | 85.4 inches (216 cm) |
Variants
| HD14C | torque converter |
|---|
Dimensions
| Gauge | 68 inches (172 cm) |
|---|---|
| Width | 92 inches (233 cm) |
| Height | 80 inches (203 cm) |
| Length | 165 inches (419 cm) |
| Operating weight | 28750 lbs (13041 kg), 29330 lbs (13304 kg) (HD14C) |
Mechanical
| Drive | crawler |
|---|---|
| Operator station | Open operator station. |
Production
| Built in | Springfield, Illinois, USA |
|---|---|
| Total built | 6,405 |
| Manufacturer | Allis Chalmers |
Transmission
| Options | 6-speed sliding gear, 3-speed torque converter |
|---|---|
| Sliding gear type | sliding gear |
| Sliding gear gears | 6 forward and 2 reverse |
| Torque converter type | torque converter |
| Torque converter gears | 3 forward and 1 reverse |
| Sliding gear oil capacity | 40 qts (37.9 L) |
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