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| info | |
| 1948 - 1961, Row-Crop tractor |
| Production | |
| Manufacturer: | Nuffield |
| Type: | Row-Crop tractor |
| Factory: | Birmingham, England |
| Variants | |
| M3: | tricycle front |
| M4: | wide front |
| Nuffield M4 Power | |
| Engine: | 38 hp 28.3 kW |
| Drawbar (claimed): | 25.4 hp 18.9 kW |
| Belt (claimed): | 32.5 hp 24.2 kW |
| Nuffield M4 Engine | |
| Fuel tank: | 19.2 gal 72.7 L |
| Aux. fuel: | 7.2 gal 27.3 L |
| Mechanical | |
| Chassis: | 4x2 2WD |
| Steering: | manual |
| Brakes: | mechanical drum |
| Cab: | Open operator station. |
| Transmission: | 5-speed gear |
| Hydraulics | |
| Type: | open center |
| Pressure: | 1000 psi 69.0 bar |
| Tractor hitch | |
| Rear Type: | I |
| Rear lift: | 3700 lbs 1678 kg |
| Power Take-off (PTO) | |
| Rear PTO: | transmission |
| Rear RPM: | 540 (1.375) |
| Engine RPM: | 527@1400 |
| Dimensions & Tires | |
| Wheelbase: | 78 inches 198 cm |
| Weight: | 4886 lbs 2216 kg |
| Front tire: | 6.00-19 |
| Rear tire: | 11.00-36 |
| Belt Pulley | |
| Diameter: | 10.25 inches 26 cm |
| RPM: | 1039 |
| Speed: | 2902 ft/min 884.53 meters/min |
| Battery | |
| Volts: | 12 |
| info | |
| 1948 - 1961, Row-Crop tractor |
| Engine Detail | |
| Morris, tvo, 4-cylinder, liquid-cooled | |
| Displacement: | 230.1 ci 3.8 L |
| Bore/Stroke: | 3.94x4.72 inches 100 x 120 mm |
| Power: | 38 hp 28.3 kW |
| Air cleaner: | oil bath |
| Rated RPM: | 2000 |
| Idle RPM: | 600-2000 |
| Torque: | 138 lb-ft 187.1 Nm |
| Torque RPM: | 1000 |
| Starter volts: | 12 |
| Oil capacity: | 7.8 qts 7.4 L |
| Coolant capacity: | 19.2 qts 18.2 L |
| info | |
| 1948 - 1961, Row-Crop tractor |
| Transmission | |
| Type: | gear |
| Gears: | 5 forward and 1 reverse |
| Clutch: | 280mm mechanical dry disc |
| Oil capacity: | 50.4 qts 47.7 L |
| info | |
| 1948 - 1961, Row-Crop tractor |
| Nuffield M4 Tires | |
| Ag front: | 6.00-19 |
| Ag rear: | 11.00-36 |
| Dimensions | |
| Wheelbase: | 78 inches 198 cm |
| Length: | 123 inches 312 cm |
| Width: | 83 inches 210 cm *Width at rear axles. |
| Height (hood): | 60.5 inches 153 cm |
| Height (exhaust): | 82 inches 208 cm |
| Operating: | 4886 lbs 2216 kg |
| Clearance (front axle): | 18 inches 45 cm |
| Clearance (rear axle): | 23 inches 58 cm |
| Front tread: | 48 to 76 inches 121 to 193 cm |
| Rear tread: | 53 to 88 inches 134 to 223 cm |