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Nuffield PM-4 Universal Specs ( 1950-1957 )

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Production

Description Utility tractor / Built in Birmingham, England
Manufacturer Nuffield

Engine

Aux. fuel 1.8 gal (6.8 L)
Engine type Morris Motors 3.8L 4-cyl gasoline
Fuel tank 16.8 gal (63.6 L)
Air cleaner oil bath
Bore/Stroke 3.937x4.724 inches (100 x 120 mm)
Compression 6:1
Coolant capacity 18 qts (17.0 L)
Description Morris Motors / gasoline / 4-cylinder / liquid-cooled vertical L-head
Displacement 230 ci (3.8 L)
Power 40.8 hp (30.4 kW)
Rated RPM 2000
Starter volts 12
Torque 226 lb-ft (306.5 Nm)
Torque RPM 950
Belt (claimed) 43.5 hp (32.4 kW)
Belt (tested) 38.4 hp (28.6 kW)
Drawbar (claimed) 34.2 hp (25.5 kW)
Drawbar (tested) 33.66 hp (25.1 kW)

Transmission

Clutch 280mm dry disc
Gears 5 forward and 1 reverse
Transmission type 5-speed gear
Type gear

Mechanical

Cab Open operator station.
Description Manual steering / Independent mechanical expanding band brakes
Drive type Two-wheel drive

Hydraulics

Pressure 1200 psi (82.7 bar)
Type open center

PTO

Engine RPM 528@1400
Rear PTO Type 540 (1.375)

Dimensions & Tires

Ballasted weight 7,765 lbs (3522 kg)
Clearance (drawbar) 21.4 inches (54 cm)
Clearance (front axle) 17 inches (43 cm)
Front tread 52.8 to 70.9 inches (134 to 180 cm)
Ground clearance 21 inches (at frame) (53 cm)
Height (exhaust) 80.7 inches (204 cm)
Height (hood) 59.5 inches (151 cm)
Length 121.7 inches (309 cm)
Operating weight 5,307 lbs (2407 kg)
Rear tread 53.2 to 88.2 inches (135 to 224 cm)
Wheelbase 78 inches (198 cm)
Front tire 6.00-16
Rear tire 11.00-36
Weight 5,307 lbs (2407 kg)
Wheelbase 78 inches (198 cm)
Ag front 6.00-16 / 7.50-18
Ag rear 11.00-36 / 13.00-30

Nebraska Tractor Test 559

Belt fuel use (max) 3.9 gal/hour (14.8 l/hour)
Belt power (max) 38.4 hp (28.6 kW)
Description Gasoline 5-speed 2WDAugust 29 - September 8, 1955Link: Nebraska Tractor Test 559 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test.
Max power 33.66 hp (25.1 kW)
Max pull 5216 lbs (2365 kg)

References

Description The Nuffield Universal Tractor published in 1956 / The Nuffield Universal Tractor published in 1956

Variants

DM3V diesel tricycle
DM4 diesel standard
PM3V gasoline tricycle
PM4 gasoline standard