Caterpillar Seventy-Five Specs ( 1933-1935 )
Overview
The Caterpillar Seventy-Five is an agricultural crawler tractor manufactured in Peoria, Illinois, between 1933 and 1935. It features a 17.0L 6-cylinder diesel engine and a 6-speed gear transmission, with a shipping weight of 31,557 lbs.
Ideal Applications
Tested Power and Fuel Consumption:
According to Nebraska Tractor Test 218, the tractor produced a maximum belt power of 92.85 hp and a maximum drawbar pull of 18,697 lbs while consuming 6.5 gallons of fuel per hour at maximum belt load.
Crawler Drive and Ground Interface:
The unit is equipped with 18-inch wide tracks providing 3,515 square inches of ground contact area over a 97.6-inch track length, supported by a 78-inch gauge width.
Mechanical and Transmission Configuration:
The powertrain consists of a liquid-cooled diesel engine rated at 820 RPM paired with a dry clutch transmission offering 6 forward and 2 reverse gears.
Production
| Description | Agricultural Crawler tractor / Built in Peoria, Illinois, USA |
|---|---|
| Manufacturer | Caterpillar |
Engine
| Engine type | Caterpillar 17.0L 6-cyl diesel |
|---|---|
| Fuel tank | 90 gal (340.7 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 5.25x8.00 inches (133 x 203 mm) |
| Coolant capacity | 112 qts (106.0 L) |
| Description | Caterpillar / diesel / 6-cylinder / liquid-cooled |
| Displacement | 1039 ci (17.0 L) |
| Oil capacity | 28 qts (26.5 L) |
| Rated RPM | 820 |
| Belt (tested) | 92.85 hp (69.2 kW) |
| Drawbar (tested) | 80.57 hp (60.1 kW) |
Transmission
| Clutch | dry |
|---|---|
| Gears | 6 forward and 2 reverse |
| Oil capacity | 40 qts (37.9 L) |
| Transmission type | 6-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. Canopy optional. |
|---|---|
| Drive | crawler |
| Steering | manual clutch |
Dimensions & Tires
| Clearance (drawbar) | 17.5 inches (44 cm) |
|---|---|
| Gauge | 78 inches (198 cm) |
| Ground clearance | 10.5 inches (26 cm) |
| Height (hood) | 84.125 inches (213 cm) |
| Length | 183 inches (464 cm) |
| Shipping weight | 31,557 lbs (14314 kg) |
| Width | 103.75 inches (263 cm) |
Belt Pulley
| Diameter | 14.4375 inches (36 cm) |
|---|---|
| RPM | 820 |
| Width | 13 inches (33 cm) |
Caterpillar Seventy-Five Tracks
| Area on ground | 3515 in² (2.3 m²) |
|---|---|
| Length on ground | 97.6 inches (247 cm) |
| Width | 18 inches (45 cm) |
Dimensions & Tracks
| Description | 18-inch tracks |
|---|---|
| Weight | 31,557 lbs (14314 kg) |
Nebraska Tractor Test 218
| Belt fuel use (max) | 6.5 gal/hour (24.6 l/hour) |
|---|---|
| Belt power (max) | 92.85 hp (69.2 kW) |
| Description | Diesel 6-speed crawlerOctober 10 - 31, 1933Link: Nebraska Tractor Test 218 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 80.57 hp (60.1 kW) |
| Max pull | 18,697 lbs (8480 kg) |