| Manufacturer | Graham-Bradley |
| Price | - |
| Model | 103 |
| Equipment Type | Row-Crop Tractors |
| Factory | Detroit, Michigan, USA |
NEBRASKA TRACTOR TEST 296 2
| Description | Gasoline 4-speed 2WD/April 6 - 14, 1938/Link: Nebraska Tractor Test 296 file/Drawbar performance/Gear 2 used for power test./Gear 1 used for pull test. |
| Belt power (max) | 30.38 hp/22.7 kW |
| Belt fuel use (max) | 3.1 gal/hour/11.7 l/hour |
| Max power | 25.20 hp/18.8 kW |
| Max pull | 3013 lbs/1366 kg |
GRAHAM-BRADLEY 103 POWER
| Plows | 3 (14-inch) |
| Drawbar (tested) | 25.20 hp/18.8 kW |
| Belt (tested) | 30.38 hp/22.7 kW |
ENGINE DETAIL
The Graham-Bradley 103 tractor features a 6-cylinder, liquid-cooled gasoline engine with a displacement of 218 cubic inches (3.6 L), optimizing power delivery for agricultural tasks. The use of a Schebler carburetor enhances fuel efficiency and performance at the rated RPM of 1500, while the oil bath air cleaner provides superior filtration, reducing engine wear. However, the complexity of the firing order (1-5-3-6-2-4) may complicate maintenance and tuning, necessitating a knowledgeable technician for optimal performance.
| Description | Graham-Paige/gasoline/6-cylinder/liquid-cooled |
| Displacement | 218 ci/3.6 L |
| Bore/Stroke | 3.25x4.375 inches/83 x 111 mm |
| Fuel system | Schebler carburetor |
| Air cleaner | oil bath |
| Rated RPM | 1500 |
| Firing order | 1-5-3-6-2-4 |
GRAHAM-BRADLEY 103 ENGINE
The Graham-Bradley 103 tractor is powered by a Graham-Paige 3.6L 6-cylinder gasoline engine, offering robust performance and good power-to-weight ratio for agricultural tasks. Its relatively compact size enhances maneuverability in tight spaces, but the reliance on gasoline may limit fuel efficiency compared to diesel counterparts. Users should consider the availability of parts and service support, as legacy models can present challenges in maintenance.
| Description | Graham-Paige 3.6L 6-cyl gasoline |
TRANSMISSION
The Graham-Bradley 103 tractor features a simple 4 forward and 1 reverse gear transmission, providing essential versatility for various agricultural tasks. Its dry disc clutch offers reliable engagement and disengagement but may be prone to wear under heavy usage compared to wet clutches. Consider this model for light to moderate tasks, as its gearing may limit performance in more demanding applications.
| Type | gear |
| Gears | 4 forward and 1 reverse |
| Clutch | dry disc |
MECHANICAL
The Graham-Bradley 103 tractor features a 4x2 2WD chassis, which offers simplicity and cost-effectiveness but may limit traction in demanding terrain. Its manual steering can be a challenge for extended use, particularly in tight spaces, yet it allows for more direct feedback and control. The 4-speed gear transmission provides versatility for various tasks, though operators may require more frequent gear changes compared to models with more advanced transmissions.
| Chassis | 4x2 2WD |
| Steering | manual |
| Cab | Open operator station. |
| Transmission | 4-speed gear |
GRAHAM-BRADLEY 103 TIRES
The Graham-Bradley 103 tractor features an Ag front tire size of 5.50x16 and a rear tire size of 9.00x36, providing a solid balance of traction and stability for field operations. The larger rear tires are beneficial for improved power transfer and reduced soil compaction. However, the relatively small front tires may pose challenges in handling and steering in rugged terrain, so operators should be mindful of load and ground conditions during use.
| Ag front | 5.50x16 |
| Ag rear | 9.00x36 |
DIMENSIONS & TIRES
The Graham-Bradley 103 tractor features a front tire size of 5.50x16 and a rear tire size of 9.00x36, providing a good balance between traction and stability for varied agricultural tasks. The larger rear tires enhance power transfer and improve performance on uneven terrain, while the narrower front tires facilitate better steering control. However, the tire size selection may limit its capability in heavy draft applications, necessitating careful consideration of intended farming activities.
| Front tire | 5.50x16 |
| Rear tire | 9.00x36 |
BELT PULLEY
| Diameter | 15 inches/38 cm |
| Width | 7.25 inches/18 cm |
| RPM | 714*The Graham Bradly has advertised at 714 belt RPM. A final drive disconnect lever allowed the use the gear shift to obtain four different speeds, plus reverse, if desired. |
| Speed | 2800 ft/min/853.44 meters/min |