Graham-Bradley 103
The Graham-Bradley 103 is a tractor produced by Graham Bradley. It is equipped with a 218 ci 3.6 L engine. Transmission: 4 forward and 1 reverse.
Fuel & Capacities
Gasoline
Transmission
4 forward and 1 reverse
Overview
 | 1938 - 1939
Row-Crop tractor |
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Production | |
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Manufacturer | Graham-Bradley |
Row-Crop tractor | |
Built in Detroit, Michigan, USA | |
Variants | |
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103 | row-crop |
104 | standard tread |
Graham-Bradley 103 Engine | |
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Graham-Paige 3.6L 6-cyl gasoline | |
Engine details ...  |
Graham-Bradley 103 Transmission | |
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4-speed gear | |
Transmission details ...  |
Graham-Bradley 103 Power | |
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Plows | 3 (14-inch) |
Drawbar (tested) | 25.20 hp
18.8 kW |
Belt (tested) | 30.38 hp
22.7 kW |
Performance test details ...  | |
Mechanical | |
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Two-wheel drive | |
Steering | manual |
Open operator station. | |
Dimensions & Tires | |
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Front tire | 5.50x16 |
Rear tire | 9.00x36 |
Full dimensions and tires ...  | |
Belt Pulley | |
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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 |
Engine
Engine Detail — 218 ci / 3.6 L Gasoline
Manufacturer | Graham-Paige |
Fuel Type | Gasoline |
Configuration | 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 |
Transmission
Transmission — 4 forward and 1 reverse gear
Type | gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
Graham-Bradley 103 Tires | |
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Ag front | 5.50x16 |
Ag rear | 9.00x36 |
Dimensions |
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Tests
Nebraska Tractor Test 296 | |
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Gasoline 4-speed 2WD
April 6 - 14, 1938
Link: Nebraska Tractor Test 296 file | |
Belt power (max) | 30.38 hp
22.7 kW |
Belt fuel use (max) | 3.1 gal/hour
11.7 l/hour |
Drawbar performance | |
Max power | 25.20 hp
18.8 kW |
Gear 2 used for power test. | |
Max pull | 3013 lbs
1366 kg |
Gear 1 used for pull test. | |
Photos
1938 Graham-Bradley 103 tractor.
1938 Graham-Bradley 103 tractor.
Graham-Bradly 103 operator station and controls.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Graham Bradley Graham-Bradley 103.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Graham Bradley Graham-Bradley 103 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Graham Bradley Graham-Bradley 103.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
Related models
Graham-Bradley 104
- Power:
- -1
- Production years:
- 1938 - 1939