Nuffield PM-4 Tractor (1957)

Manufacturer:Nuffield

Price:N/A

Series:

Model:PM-4

Equipment Type: Utility Tractors

Factory:Birmingham, England

Full Specifications

VARIANTS

PM3V
gasoline tricycle
DM3V
diesel tricycle

NEBRASKA TRACTOR TEST 559 2

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

NUFFIELD PM-4 POWER

Engine
40.8 hp / 30.4 kW
Drawbar (claimed)
34.2 hp / 25.5 kW
Belt (claimed)
43.5 hp / 32.4 kW
Drawbar (tested)
33.66 hp / 25.1 kW
Belt (tested)
38.4 hp / 28.6 kW

ENGINE DETAIL

Description
Morris Motors gasoline 4-cylinder liquid-cooled vertical L-head
Displacement
230 ci / 3.8 L
Bore/Stroke
3.937x4.724 inches/100 x 120 mm
Power
40.8 hp / 30.4 kW
Air cleaner
oil bath
Compression
6:1
Rated RPM
2000
Torque
226 lb-ft / 306.5 Nm
Torque RPM
950
Starter volts
12
Coolant capacity
18 qts / 17.0 L

NUFFIELD PM-4 ENGINE

Description
Morris Motors 3.8L 4-cyl gasoline
Fuel tank
16.8 gal / 63.6 L
Aux. fuel
1.8 gal/6.8 L

TRANSMISSION

Type
gear
Gears
5 forward and 1 reverse
Clutch
280mm dry disc

MECHANICAL

Chassis
4x2 2WD
Steering
manual
Brakes
independent mechanical expanding band
Cab
Open operator station.
Transmission
5-speed gear

HYDRAULICS

Type
open center
Pressure
1200 psi/82.7 bar/2000 psi/137.9 bar (1955 onward)

POWER TAKE-OFF (PTO)

Rear RPM
540 (1.375)
Engine RPM
528@1400

NUFFIELD PM-4 TIRES

Ag front
7.50-18
Ag rear
13.00-30/14.00-30/9.00-36

DIMENSIONS

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

DIMENSIONS & TIRES

Wheelbase
78 inches / 198 cm
Weight
5,307 lbs / 2407 kg
Front tire
6.00-16
Rear tire
11.00-36

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