Gibson
Gibson I
The Gibson I is a row-crop tractor produced from 1948 to 1952 by Gibson in Longmont, Colorado, USA. It features a Hercules 3.9L 6-cylinder gasoline engine, a 4-speed gear transmission, and two-wheel drive with manual steering. The tractor has a live rear PTO with a 540 rpm type and is capable of pulling 2-3 plows. It has an open operator station and mechanical band brakes. The tractor weighs between 4000 to 4512 pounds operating weight and has a wheelbase of 94 inches. It was available in tricycle-front, adjustable wide-front, and standard front variants.
Power40 hp[P]
Founded1948 - 1952
ModelI
Technical Specifications
Detailed specifications and technical data for Gibson I
Power
| Plows | 2-3 |
|---|---|
| PTO (tested) | 36.82 hp (27.5 kW) |
| Belt (tested) | 41.03 hp (30.6 kW) |
| Drawbar (tested) | 29.1 hp (21.7 kW) |
Tires
| Ag rear | 10-38, 11-38, 12-38 |
|---|---|
| Ag front | 5.50-16 |
Engine
| Type | gasoline, 6-cylinder, liquid-cooled |
|---|---|
| Model | Hercules ZXD |
| Fuel tank | 20 gal (75.7 L) |
| Rated RPM | 1800 |
| Air cleaner | oil bath |
| Bore/Stroke | 3.4375x4.125 inches (87 x 105 mm) |
| Compression | 6.71:1 |
| Displacement | 236.7 ci (3.9 L) |
| Starter volts | 6 |
| Coolant capacity | 17 qts (16.1 L) |
Weight
| Shipping | 4000 lbs (1814 kg) |
|---|---|
| Ballasted | 7495 lbs (3399 kg) |
| Operating | 4512 lbs (2046 kg) |
Variants
| I | tricycle-front |
|---|---|
| IFA | adjustable wide-front |
| IFS | standard front |
Dimensions
| Height | 67 inches (170 cm) |
|---|---|
| Length | 127.25 inches (323 cm) |
| Wheelbase | 94 inches (238 cm) |
| Rear tread | 49 to 90 inches (124 to 228 cm) |
| Ground clearance | 25 inches (63 cm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical band brakes |
| Steering | Manual |
| Final drives | bull gear |
| Operator station | Open operator station |
Production
| Type | Row-Crop tractor |
|---|---|
| Built in | Longmont, Colorado, USA |
| Years made | 1948 - 1952 |
| Manufacturer | Gibson |
Belt Pulley
| RPM | 1487 |
|---|---|
| Speed | 3539 ft/min (1078.69 meters/min) |
| Width | 7.5 inches (19 cm) |
| Diameter | 9.2 inches (23 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Clutch | 254mm dry disc |
Power Take-off (PTO)
| Rear PTO | live |
|---|---|
| Rear PTO Type | 540 (1.375) |