Allis Chalmers M

The Allis Chalmers M is a tractor produced by Allis Chalmers. It is equipped with a 318 ci 5.2 L engine. Transmission: 4 forward and 1 reverse. Drive type: crawler. Operating weight: 6200 lbs 2812 kg.

Overview

	1932 - 1942 Agricultural Crawler tractor

Production
Manufacturer	Allis Chalmers
Agricultural Crawler tractor
Built in Springfield, Illinois, USA
Total built	14,524

Variants
M	standard width
WM	wide

Allis Chalmers M Transmission
4-speed gear
Transmission details ...

Allis Chalmers M Power
Drawbar (claimed)	22 hp 16.4 kW
Belt (claimed)	32 hp 23.9 kW
Drawbar (tested)	29.65 hp 22.1 kW
Belt (tested)	35.43 hp 26.4 kW
Performance test details ...

Mechanical
Drive	crawler
Open operator station.

Dimensions & Tracks
Weight	6200 lbs 2812 kg
12-inch tracks
Full dimensions and tracks ...

References
Build a Better Farm published in 1940, by Allis Chalmers

Engine

Engine options
Allis Chalmers 4.9L 4-cyl gasoline
Allis Chalmers 5.2L 4-cyl gasoline

Engine Detail — 300.7 ci / 4.9 L Gasoline

Manufacturer	Allis Chalmers
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled vertical I-head
Original engine used until 1936, SN 2941
Displacement	300.7 ci 4.9 L
Bore/Stroke	4.375x5.00 inches 111 x 127 mm
Air cleaner	oil bath
Compression	4.2:1 (early)
	4.7:1 (late)
Rated RPM	1200
Starter volts	6
Oil capacity	10 qts 9.5 L
Coolant capacity	24 qts 22.7 L

Engine Detail — 318 ci / 5.2 L Gasoline

Manufacturer	Allis Chalmers
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled vertical I-head
Used from 1936 on, SN 2942
Displacement	318 ci 5.2 L
Bore/Stroke	4.50x5.00 inches 114 x 127 mm
Air cleaner	oil bath
Rated RPM	1200

Transmission

Transmission — 4 forward and 1 reverse gear

Type	gear
Gears	4 forward and 1 reverse
Clutch	Rockford dry plate
Oil capacity	12 qts 11.4 L

Dimensions

Allis Chalmers M Tracks
Width	12 inches 30 cm
Length on ground	56.4 inches 143 cm
Area on ground	1353 in² 0.9 m²
Ground pressure	4.8 psi 0.3 bar

Dimensions
Length	101.3 inches 257 cm
Width	57.25 inches 145 cm
Height	56 inches 142 cm
Weight	6200 lbs 2812 kg
Gauge	40 inches 101 cm

Tests

Tractor Tests
NTTL 216: 4.9L gasoline 4-speed crawler
NTTL 239: gasoline 4-speed crawler

Nebraska Tractor Test 216
4.9L gasoline 4-speed crawler September 23 - October 9, 1933 Link: Nebraska Tractor Test 216 file
Belt power (max)	35.43 hp 26.4 kW
Belt fuel use (max)	3.6 gal/hour 13.6 l/hour
Drawbar performance
Max power	29.65 hp 22.1 kW
Gear 1 used for power test.
Max pull	5,166 lbs 2343 kg
Gear 1 used for pull test.

Nebraska Tractor Test 239
Gasoline 4-speed crawler August 1 - 9, 1935 Link: Nebraska Tractor Test 239 file
Belt power (max)	35.05 hp 26.1 kW
Belt fuel use (max)	4.2 gal/hour 15.9 l/hour
Drawbar performance
Max power	28.66 hp 21.4 kW
Gear 2 used for power test.
Max pull	5,009 lbs 2272 kg
Gear 1 used for pull test.

Photos

Allis-Chalmers WM in West Wales, UK, in the 1950s. Right side.

Allis-Chalmers WM in West Wales, UK, in the 1950s. Right side.

Allis-Chalmers M.

Allis-Chalmers WM with dozer blade.