Allis Chalmers lawn tractors

Allis Chalmers 312

The Allis Chalmers 312 is a garden tractor produced from 1971 to 1973 as part of the 300 Series. It was built in Lexington, South Carolina, USA. The tractor features a 12 hp Kohler 476cc 1-cylinder gasoline engine, with a fuel tank capacity of 2.25 gallons. Transmission options include a 21-speed manual Vari-Shift and a hydrostatic transmission with infinite forward and reverse speeds. It has two-wheel drive with manual steering and an open operator station. The front PTO is independent with a manual clutch and optional electric clutch. Dimensions include a 48.1 inch wheelbase, 74 inch length, and weight ranging from 804 to 845 pounds depending on the transmission. Tires are sized 16-6.50x8 front and 23-10.50x12 rear. Electrical system features a 12 volt battery with a 15 amp alternator. Attachments include 42 and 48 inch mid-mount mower decks with manual or optional electric lift. The serial number plate is located on the left side of the tractor near the dashboard.
Power12 hp
Founded42/48" deck
Model312

Technical Specifications

Detailed specifications and technical data for Allis Chalmers 312

Engine
TypeKohler 476cc 1-cyl gasoline
Power12 hp
Fuel tank2.25 gal (8.5 L)
Rated RPM3600
Bore/Stroke3.38x3.25 inches (86 x 83 mm)
Displacement476 cc (29.07 ci)
Oil capacity2 qts (1.9 L)
Starter volts12
Oil change interval25 h
Overview
NotesThe Allis-Chalmers 312 can be referenced in the Simplicity catalog by codes 1600046, 1600047 (electric pto/lift), and 1600048 (hydrostatic).
Series300 Series
Built inLexington, South Carolina, USA
CategoryGarden tractor
Production years1971 - 1973
Variants
312manual lift/PTO
312Delectric lift/PTO
312Hhydrostatic
Electrical
Groundnegative
Battery volts12
Charging amps15
Charging systemalternator
Mechanical
DriveTwo-wheel drive
Steeringmanual
Operator stationOpen operator station
Attachments
NotesGarden tractors are capable of using tillers, plows, or other ground-engaging attachments.
42" mid-mount mower deck42 inches (106 cm), 3-blade, manual lift, electric lift (optional)
48" mid-mount mower deck48 inches (121 cm), 3-blade, manual lift, electric lift (optional)
Transmission
Options21-speed, hydrostatic
Manual transmission
TypeVari-Shift
Gears21 forward and 7 reverse
Hydrostatic transmission
Typehydrostatic
Gearsinfinite forward and reverse
Dimensions & Tires
Width38.5 inches (97 cm)
Length74 inches (187 cm)
Weight804 lbs (364 kg), 845 lbs (383 kg) hydrostatic
Rear tire23-10.50x12
Wheelbase48.1 inches (122 cm)
Front tire16-6.50x8
Rear tread30.7 inches (77 cm)
Front tread28 inches (71 cm)
Clearance (drawbar)7.5 inches (19 cm)
Clearance (rear axle)6 inches (15 cm)
Clearance (front axle)8 inches (20 cm)
Height (steering wheel)43 inches (109 cm)
Power Take-off (PTO)
Clutchmanual
Front PTOindependent
Front PTO Type3600
Optional clutchelectric (optional)
Serial Number Location
LocationSerial number plate on the left side of the tractor, to the side of the dashboard.