Allis Chalmers

Allis Chalmers UC

The Allis Chalmers UC is a row-crop tractor produced from 1933 to 1941 by Allis Chalmers in West Allis, Wisconsin, USA. Originally named the All-Crop, the UC was built in two main variants: the standard U and the row-crop UC. It features two engine options: a 4.9L 4-cylinder gasoline engine and a 5.2L 4-cylinder gasoline engine, with power ratings around 34.4 hp estimated. The tractor has a 3-speed or 4-speed non-synchronized gear transmission, two-wheel drive, and an open operator station. It has a wheelbase of 87 inches, weighs approximately 5815 lbs, and can pull 3 plows. The UC was built in total numbers of 4,647 units, with an additional 1,541 UC Cane units produced.

Power34 hp[B]

Founded1933 - 1941

ModelUC

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Technical Specifications

Detailed specifications and technical data for Allis Chalmers UC

Power

Plows	3
Belt (tested)	34.09 hp (25.4 kW)
Belt (claimed)	31 hp (23.1 kW)
Drawbar (tested)	21.14 hp (15.8 kW)
Drawbar (claimed)	19 hp (14.2 kW)

Tires

Ag rear	42x2 steel, 12.75x24
Ag front	24x5 steel, 6.00x16

Engine

Aux. fuel	1 gal (3.8 L)
Fuel tank	24 gal (90.8 L)
Details 4.9L	Allis-Chalmers gasoline 4-cylinder vertical I-head, Displacement 300.7 ci (4.9 L), Bore/Stroke 4.375x5.00 inches (111 x 127 mm), Rated RPM 1200, The 301 Allis engine replaced was the second engine on the All-Crop / UC. It was used from 1933 until 1936; tractor serial numbers UC1369 though UC2281
Details 5.2L	Allis-Chalmers gasoline 4-cylinder liquid-cooled vertical I-head, Displacement 318 ci (5.2 L), Bore/Stroke 4.50x5.00 inches (114 x 127 mm), Rated RPM 1200, Coolant capacity 24 qts (22.7 L), The 318 Allis was the final engine, introduced in 1936 on tractor serial number UC2282
Engine options	Allis-Chalmers 4.9L 4-cyl gasoline, Allis-Chalmers 5.2L 4-cyl gasoline

Variants

U	standard
UC	row-crop

Dimensions

Width	81 inches (205 cm)
Height	69.5 inches (176 cm)
Length	145 inches (368 cm)
Weight	5815 lbs (2637 kg)
Wheelbase	87 inches (220 cm)

Mechanical

Drive	Two-wheel drive
Operator station	Open operator station.

Production

Note	The Allis-Chalmers model UC was originally named the All-Crop.
Type	Row-Crop tractor
Built in	West Allis, Wisconsin, USA
Total built	4,647 UC, 1,541 UC Cane
Years produced	1933 - 1941

Belt Pulley

RPM	1095
Speed	2870 ft/min (874.78 meters/min)
Width	7.5 inches (19 cm)
Diameter	10 inches (25 cm)

Transmission

Type 3-speed	non-synchronized gear
Type 4-speed	non-synchronized gear
Gears 3-speed	3 forward and 1 reverse
Gears 4-speed	4 forward and 1 reverse
Transmission options	3-speed non-synchronized gear, 4-speed non-synchronized gear

Serial Numbers

1930	UC1
1931	UC39
1932	UC1100
1933	UC1232
1934	UC1294
1935	UC1552
1936	UC2001
1937	UC2771
1938	UC3757
1939	UC4547
1940	UC4770
1941	UC4972
1944	5038
1945	-
1946	-
1947	5068
1948	5268
1949	5526
1950	5644
1951	5806
1952	5939
1953	6143
Location	Rear axle near PTO