Caterpillar Diesel Forty Specs ( 1934-1936 )
Overview
The Caterpillar Diesel Forty is a diesel-powered farm crawler tractor manufactured in Peoria, Illinois, between 1934 and 1936. This model features a 10.2L 3-cylinder liquid-cooled engine and was produced with a total of 1,971 units during its production run. It is equipped with a four-speed gear transmission and 16-inch wide tracks, weighing 15,642 lbs.
Ideal Applications
Tested Drawbar Performance:
In Nebraska Tractor Test 242, the crawler demonstrated a maximum drawbar pull of 9,750 lbs and achieved 50.44 hp at 1000 RPM.
Engine Specifications:
The tractor is powered by a Caterpillar D6600 624 ci diesel engine featuring a 5.75x8.00 inch bore and stroke and a 45-gallon fuel capacity.
Mechanical Configuration:
The drive system consists of a crawler chassis with an open operator station and a transmission offering four forward gears and one reverse gear.
Production
| Description | Agricultural Crawler tractor / Built in Peoria, Illinois, USA |
|---|---|
| Manufacturer | Caterpillar |
Engine
| Engine type | Caterpillar 10.2L 3-cyl diesel |
|---|---|
| Fuel tank | 45 gal (170.3 L) |
| Bore/Stroke | 5.75x8.00 inches (146 x 203 mm) |
| Description | Caterpillar D6600 / diesel / 3-cylinder / liquid-cooled |
| Displacement | 624 ci (10.2 L) |
| Rated RPM | 1000 |
| Belt (tested) | 56.05 hp (41.8 kW) |
| Drawbar (tested) | 50.44 hp (37.6 kW) |
Transmission
| Gears | 4 forward and 1 reverse |
|---|---|
| Transmission type | 4-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station |
|---|---|
| Drive | crawler |
Dimensions & Tires
| Gauge | 56 inches (142 cm) / 74 inches (187 cm) |
|---|---|
| Weight | 15642 lbs (7095 kg) |
Caterpillar Diesel Forty Tracks
| Width | 16 inches (40 cm) |
|---|
Diesel Forty Serial Numbers
| 1934 | 3G1 |
|---|---|
| 1935 | 3G335 |
| 1936 | 3G1957 |
| Description | FAQ: How to read a serial number table. |
| Final | 3G1971 |
Dimensions & Tracks
| Description | 16-inch tracks |
|---|---|
| Weight | 15642 lbs (7095 kg) |
Nebraska Tractor Test 242
| Belt fuel use (max) | 4.1 gal/hour (15.5 l/hour) |
|---|---|
| Belt power (max) | 56.05 hp (41.8 kW) |
| Description | Diesel (1000 RPM) 4-speed crawlerAugust 19 - September 9, 1935Link: Nebraska Tractor Test 242 file / Drawbar performance / Gear 2 used for power test. / Gear 2 used for pull test. |
| Max power | 50.44 hp (37.6 kW) |
| Max pull | 9750 lbs (4422 kg) |
Nebraska Tractor Test 243
| Belt fuel use (max) | 3.4 gal/hour (12.9 l/hour) |
|---|---|
| Belt power (max) | 48.60 hp (36.2 kW) |
| Description | Diesel (850 RPM) 4-speed crawlerSeptember 10 - 12, 1935Link: Nebraska Tractor Test 243 file / Drawbar performance / Gear 1 used for power test. / Gear 1 used for pull test. |
| Max power | 42.82 hp (31.9 kW) |
| Max pull | 9692 lbs (4396 kg) |
Tractor Tests
| Description | NTTL 242: diesel (1000 RPM) 4-speed crawler / NTTL 243: diesel (850 RPM) 4-speed crawler |
|---|
Variants
| Diesel Forty | diesel engine |
|---|---|
| Forty | gas engine |