Caterpillar Twenty-Two Specs ( 1934-1939 )
Overview
The Caterpillar Twenty-Two is an agricultural crawler tractor produced in Peoria, Illinois, from 1934 to 1939, featuring a 251 cubic inch 4-cylinder engine available in gasoline and distillate configurations. It is built with a 3-speed gear transmission and an open operator station, with a shipping weight of approximately 6,200 pounds and a 108-inch chassis length. The machine is equipped with 10-inch tracks and manual steering clutches, providing 1,090 square inches of ground contact.
Ideal Applications
Tested Power Output:
In Nebraska Tractor Test 228, the gasoline-powered model achieved a maximum belt power of 30.71 hp and a maximum drawbar pull of 4,900 lbs.
Track and Ground Dimensions:
The crawler utilizes 10-inch wide tracks with 54.5 inches of length on the ground, resulting in a total ground area of 1,090 square inches and a 9-inch ground clearance.
Engine and Mechanical Specs:
The liquid-cooled 4.1L engine is rated at 1250 RPM and features an oil bath air cleaner, a Zenith K5A carburetor, and a 22-gallon fuel tank capacity.
Production
| Description | Agricultural Crawler tractor / Built in Peoria, Illinois, USA |
|---|---|
| Manufacturer | Caterpillar |
Engine
| Engine type | Caterpillar 4.1L 4-cyl gasoline / Caterpillar 4.1L 4-cyl distillate |
|---|---|
| Fuel tank | 22 gal (83.3 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 4.00x5.00 inches (102 x 127 mm) / 4.00x5.00 inches (102 x 127 mm) |
| Coolant capacity | 20 qts (18.9 L) / 20 qts (18.9 L) |
| Description | Caterpillar / gasoline / 4-cylinder / liquid-cooled / Caterpillar / distillate / 4-cylinder / liquid-cooled |
| Displacement | 251 ci (4.1 L) / 251 ci (4.1 L) |
| Fuel system | Zenith K5A carburetor / Zenith K5A carburetor |
| Oil capacity | 10 qts (9.5 L) / 10 qts (9.5 L) |
| Rated RPM | 1250 / 1250 |
| Engine type | Caterpillar 4.1L 4-cyl gasoline / Caterpillar 4.1L 4-cyl distillate |
| Belt (tested) | 30.71 hp (22.9 kW) |
| Drawbar (tested) | 25.26 hp (18.8 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 3 forward and 1 reverse |
| Oil capacity | 8 qts (7.6 L) |
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive | crawler |
| Steering | manual clutches |
Dimensions & Tires
| Clearance (drawbar) | 10.5 inches (26 cm) |
|---|---|
| Gauge | 40 inches (101 cm) / 50 inches (127 cm) |
| Ground clearance | 9 inches (22 cm) |
| Height (hood) | 56.125 inches (142 cm) |
| Length | 108 inches (274 cm) |
| Shipping weight | 6,200 lbs (40" gauge) (2812 kg) |
| Width | 57.75 inches (40" gauge) (146 cm) |
Belt Pulley
| Diameter | 10.5 inches (26 cm) |
|---|---|
| RPM | 950 |
| Width | 6.5 inches (16 cm) |
Caterpillar Twenty-Two Tracks
| Area on ground | 1090 in² (0.7 m²) |
|---|---|
| Length on ground | 54.5 inches (138 cm) |
| Width | 10 inches (25 cm) |
Dimensions & Tracks
| Description | 10-inch tracks |
|---|---|
| Weight | 6200 to 6270 pounds |
Links
| Description | Caterpillar Twenty-Two: photos of a restoration / Caterpillar Twenty-Two: photos and information on a Cat 22 restoration in Australia |
|---|
Nebraska Tractor Test 226
| Belt fuel use (max) | 3.0 gal/hour (11.4 l/hour) |
|---|---|
| Belt power (max) | 29.36 hp (21.9 kW) |
| Description | Distillate 3-speed crawlerSeptember 25 - October 9, 1934Link: Nebraska Tractor Test 226 file / Drawbar performance / Gear 1 used for power test. / Gear 1 used for pull test. |
| Max power | 23.43 hp (17.5 kW) |
| Max pull | 4,534 lbs (2056 kg) |
Nebraska Tractor Test 228
| Belt fuel use (max) | 3.3 gal/hour (12.5 l/hour) |
|---|---|
| Belt power (max) | 30.71 hp (22.9 kW) |
| Description | Gasoline 3-speed crawlerOctober 17 - 30, 1934Link: Nebraska Tractor Test 228 file / Drawbar performance / Gear 1 used for power test. / Gear 1 used for pull test. |
| Max power | 25.26 hp (18.8 kW) |
| Max pull | 4,900 lbs (2222 kg) |
Tractor Tests
| Description | NTTL 226: distillate 3-speed crawler / NTTL 228: gasoline 3-speed crawler |
|---|