Allis-Chalmers HD10 Specs ( 1940-1950 )
Overview
The Allis-Chalmers HD10 is a diesel crawler tractor manufactured in Springfield, Illinois, between 1940 and 1950. It features a General Motors 4.7L 4-cylinder 2-cycle engine and a sliding gear transmission offering six forward and two reverse speeds. Official testing under Nebraska Tractor Test 361 recorded a maximum belt power of 98.5 hp and a maximum drawbar pull of 15,507 lbs.
Ideal Applications
Tested Power Performance:
Nebraska Tractor Test 361 established the machine's maximum drawbar power at 82.19 hp and its maximum belt power at 98.5 hp at a rated 1600 RPM.
Ground Contact and Weight:
The tractor is configured with 18-inch tracks providing 2,775 square inches of area on the ground and a ground pressure of 7.16 psi, with a total weight ranging from 20,380 to 21,455 pounds.
Engine and Mechanical System:
The 284 cubic inch General Motors blower diesel engine is liquid-cooled with a 16.0:1 compression ratio and is supported by a 44-gallon fuel tank and a 12-volt starter system.
Production
| Description | Agricultural Crawler tractor / Built in Springfield, Illinois, USA |
|---|---|
| Manufacturer | Allis Chalmers |
| Total built | 8,750 |
Engine
| Description | Image courtesy of Weston Jenkins |
|---|---|
| Engine type | General Motors 4.7L 4-cyl diesel |
| Fuel tank | 44 gal (166.5 L) |
| Bore/Stroke | 4.25x5.00 inches (108 x 127 mm) |
| Compression | 16.0:1 |
| Coolant capacity | 39 qts (36.9 L) |
| Description | General Motors / blower diesel / 4-cylinder / liquid-cooled 2-cycle vertical I-head |
| Displacement | 284 ci (4.7 L) |
| Oil capacity | 13 qts (12.3 L) |
| Rated RPM | 1600 |
| Starter volts | 12 |
| Belt (claimed) | 86 hp (64.1 kW) |
| Belt (tested) | 98.5 hp (73.5 kW) |
| Drawbar (claimed) | 65 hp (48.5 kW) |
| Drawbar (tested) | 82.19 hp (61.3 kW) |
Transmission
| Gears | 6 forward and 2 reverse |
|---|---|
| Oil capacity | 24 qts (22.7 L) |
| Transmission | sliding gear |
| Transmission type | 6-speed |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive | crawler |
Dimensions & Tires
| Gauge | 62 inches (157 cm) |
|---|---|
| Height | 78 inches (198 cm) |
| Length | 150 inches (381 cm) |
| Width | 94 inches (238 cm) |
Allis Chalmers HD10 Tracks
| Area on ground | 2775 in² (1.8 m²) |
|---|---|
| Ground pressure | 7.16 psi (0.5 bar) |
| Length on ground | 77.1 inches (195 cm) |
| Width | 18 inches (45 cm) |
Allis Chalmers HD10 Weight
| Shipping | 20380 lbs (62-inch tread) (9244 kg) |
|---|
Dimensions & Tracks
| Description | 18-inch tracks |
|---|---|
| Weight | 20380 to 21455 pounds |
HD10 Serial Numbers
| 1940 | 2 |
|---|---|
| 1941 | 642 |
| 1942 | 1446 |
| 1946 | 5964 |
| 1947 | 6463 |
| 1948 | 7602 |
| 1949 | 8676 |
| 1950 | 9631 |
| Description | FAQ: How to read a serial number table. |
| Final | 10198 |
| Location: | Rear of transmission case or plate near instrument panel. |
Nebraska Tractor Test 361
| Belt power (max) | 98.5 hp (73.5 kW) |
|---|---|
| Description | Diesel 6-speed crawlerOctober 15 - 25, 1940Link: Nebraska Tractor Test 361 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 82.19 hp (61.3 kW) |
| Max pull | 15507 lbs (7033 kg) |
References
| Description | It's a Modern Diesel - built for you published in 1941, by Allis Chalmers / Build a Better Farm published in 1940, by Allis Chalmers |
|---|