Nuffield
Nuffield Universal M4
The Nuffield Universal M4 is a row-crop tractor produced from 1948 to 1961 by Nuffield in Birmingham, England. It features a Morris 3.8L 4-cylinder liquid-cooled TVO engine producing 38 hp, with a 5-speed gear transmission and two-wheel drive. The tractor includes an open center hydraulic system with 1000 psi pressure, a rear I-type hitch with 3700 lbs lift capacity, and a transmission-driven rear PTO at 540 RPM. It has a wheelbase of 78 inches, weighs 4886 lbs, and rides on 6.00-19 front and 11.00-36 rear tires. The M4 variant has a wide front configuration and manual steering with mechanical drum brakes.
Power-
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ModelM4
Technical Specifications
Detailed specifications and technical data for Nuffield Universal M4
Power
| Engine | 38 hp (28.3 kW) |
|---|---|
| Belt (claimed) | 32.5 hp (24.2 kW) |
| Drawbar (claimed) | 25.4 hp (18.9 kW) |
Tires
| Ag rear | 11.00-36, 9.00-36 |
|---|---|
| Ag front | 6.00-19 |
Engine
| Make | Morris |
|---|---|
| Type | tvo |
| Power | 38 hp (28.3 kW) |
| Torque | 138 lb-ft (187.1 Nm) |
| Cooling | liquid-cooled |
| Idle RPM | 600-2000 |
| Aux. fuel | 7.2 gal (27.3 L) |
| Cylinders | 4-cylinder |
| Fuel tank | 19.2 gal (72.7 L) |
| Rated RPM | 2000 |
| Torque RPM | 1000 |
| Air cleaner | oil bath |
| Bore/Stroke | 3.94x4.72 inches (100 x 120 mm) |
| Displacement | 230.1 ci (3.8 L) |
| Oil capacity | 7.8 qts (7.4 L) |
| Starter volts | 12 |
| Coolant capacity | 19.2 qts (18.2 L) |
Dimensions
| Width | 83 inches (210 cm) *Width at rear axles. |
|---|---|
| Length | 123 inches (312 cm) |
| Wheelbase | 78 inches (198 cm) |
| Rear tread | 53 to 88 inches (134 to 223 cm) |
| Front tread | 48 to 76 inches (121 to 193 cm) |
| Height (hood) | 60.5 inches (153 cm) |
| Height (exhaust) | 82 inches (208 cm) |
| Operating weight | 4886 lbs (2216 kg) |
| Clearance (rear axle) | 23 inches (58 cm) |
| Clearance (front axle) | 18 inches (45 cm) |
Hydraulics
| Type | open center |
|---|---|
| Pressure | 1000 psi (69.0 bar) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical drum brakes |
| Steering | Manual steering |
| Operator station | Open operator station. |
Production
| Type | Row-Crop tractor |
|---|---|
| Built in | Birmingham, England |
| Years produced | 1948 - 1961 |
Belt Pulley
| RPM | 1039 |
|---|---|
| Speed | 2902 ft/min (884.53 meters/min) |
| Diameter | 10.25 inches (26 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 5 forward and 1 reverse |
| Clutch | 280mm mechanical dry disc |
| Oil capacity | 50.4 qts (47.7 L) |
Tractor hitch
| Rear Type | I |
|---|---|
| Rear lift | 3700 lbs (1678 kg) |
Power Take-off (PTO)
| Rear PTO | transmission |
|---|---|
| Engine RPM | 527@1400 |
| Rear PTO Type | 540 (1.375) |
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