Allis Chalmers WD

The Allis Chalmers WD is a tractor produced by Allis Chalmers. It is equipped with a 201 ci 3.3 L engine. Transmission: 4 forward and 1 reverse. Operating weight: 3500 lbs 1587 kg.

Fuel & Capacities

15 gal 56.8 L

Transmission

4 forward and 1 reverse

Operating Weight

3500 lbs 1587 kg

Overview

	1948 - 1953 Row-Crop tractor

Production
Manufacturer	Allis Chalmers
Row-Crop tractor
Built in West Allis, Wisconsin, USA
Total built	146,125
Original price	$1,830
The Allis-Chalmers WD featured Two-Clutch Power Control and power-shifted rear wheels. The dual clutch system used a foot-operated dry clutch to disconnect the PTO and driveline from the engine. A hand-operated wet clutch allowed the PTO to operate while the tractor was slowed or stopped.

Allis Chalmers WD Transmission
4-speed non-synchronized gear
Transmission details ...

Allis Chalmers WD Power
Drawbar (claimed)	19 hp 14.2 kW
PTO (claimed)	26 hp 19.4 kW
Drawbar (tested)	30.23 hp 22.5 kW
Belt (tested)	34.63 hp 25.8 kW
Performance test details ...

Mechanical
Two-wheel drive
Steering	manual worm and horizontal sector
Manual external compression band type brakes
Open operator station.

Capacity
Fuel	15 gal 56.8 L
Hydraulic system	1.25 gal 4.7 L

Hydraulics
Type	open center
Capacity	1.25 gal 4.7 L
Pressure	1200 psi 82.7 bar
Valves	1 OptOptional

Tractor hitch
Rear Type	Single Hitch Point

Power Take-off (PTO)
Rear PTO	transmission
	live OptOptional
Rear PTO Type	540

Dimensions & Tires
Wheelbase	88.1 inches 223 cm
Weight	3500 lbs 1587 kg
Front tire	5.50-16
Rear tire	11-28
Full dimensions and tires ...

Electrical
Ground	positive
Charging system	Delco generator
Battery volts	6

Engine

Engine options
Allis Chalmers 3.3L 4-cyl tractor fuel
Allis-Chalmers 3.3L 4-cyl gasoline

Engine Detail — 201 ci / 3.3 L

Manufacturer	Allis Chalmers
Configuration	4-cylinder 8-valve, liquid-cooled vertical I-head
tractor fuel
Displacement	201 ci 3.3 L
Bore/Stroke	4.00x4.00 inches 102 x 102 mm
Compression	4.5:1
Rated RPM	1400
Firing order	1-2-4-3
Starter	electric
	hand crank
Starter volts	6
Coolant capacity	14 qts 13.2 L

Engine Detail — 201 ci / 3.3 L Gasoline

Manufacturer	Allis-Chalmers
Fuel Type	Gasoline
Configuration	4-cylinder 8-valve, liquid-cooled vertical I-head
In 1953 (SN 136318) a distributor ignition system replaced the older magneto system.
Displacement	201 ci 3.3 L
Bore/Stroke	4.00x4.00 inches 102 x 102 mm
Compression	5.75:1
Rated RPM	1400
Firing order	1-2-4-3
Starter	electric
	hand crank
Starter volts	6

Transmission

Transmission — 4 forward and 1 reverse non-synchronized gear

Type	non-synchronized gear
Gears	4 forward and 1 reverse

Dimensions

Allis Chalmers WD Tires
Ag front	5.50-16
Ag rear	11-28
Ag rear	12-28

Dimensions
Wheelbase	88.1 inches 223 cm
Length	127 inches 322 cm
Height	81.5 inches 207 cm
Operating weight	3500 lbs 1587 kg
Ballasted weight	5050 lbs 2290 kg
Rear tread	55.6 to 90.1 inches 141 to 228 cm

Tests

Tractor Tests
NTTL 399: tractor fuel 4-speed 2WD
NTTL 440: gasoline 4-speed 2WD

Nebraska Tractor Test 399
Tractor fuel 4-speed 2WD July 16 - 30, 1948 Link: Nebraska Tractor Test 399 file
Belt power (max)	26.14 hp 19.5 kW
Belt fuel use (max)	2.7 gal/hour 10.2 l/hour
Drawbar performance
Max power	24.31 hp 18.1 kW
Gear 2 used for power test.
Max pull	3,423 lbs 1552 kg
Gear 1 used for pull test.

Nebraska Tractor Test 440
Gasoline 4-speed 2WD May 17 - June 1, 1950 Link: Nebraska Tractor Test 440 file
Belt power (max)	34.63 hp 25.8 kW
Belt fuel use (max)	3.2 gal/hour 12.1 l/hour
Drawbar performance
Max power	30.23 hp 22.5 kW
Gear 3 used for power test.
Max pull	4,304 lbs 1952 kg
Gear 1 used for pull test.

Photos

Allis-Chalmers WD with wide front end

Tricycle-front 1949 Allis-Chalmers WD

Allis-Chalmers WD operator station and controls.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers WD.

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