JD 312 Engine Technical Data
Engine Model – Kohler K301AQS
Engine Type – Single cylinder air cooled gasoline
Number of Cylinders – 1
Displacement, cu in (L) – 29,1 (0,476)
Engine Bore, in (mm) – 3,38 (86,0)
Engine Stroke, in (mm) – 3,35 (83,0)
Rated Engine Power, hp (kW) – 12,0 (8,9)
Rated Engine Speed, rpm – 3800
Operating Engine Speed, rpm – 1200-3800
Fuel System – Carburetor
Air cleaner – Dry type
Point Gap, in (mm) – 0,020 (0,508)
Intake Valve Clearance, in (mm) – 0,010 (0,254)
Exhaust Valve Clearance, in (mm) – 0,020 (0,508)
Spark Plug-Gap, in (mm) – 0,025 (0,635)
Spark Plug-Torque, Nm (ft-lbs) – 20,0 (15,0)
Electrical System Rating, Volts – 12
Charging System Capacity, Amps – 40
John Deere 312 Transmission
Transmission Model – Sundstrand 15 Transaxle
Transmission Type – Shaft-driven hydrostatic
Speeds – Infinite forward and reverse
Max Forward Speed, mph (kph) – 6,8 (10,9)
Max Reverse Speed, mph (kph) – 3,8 (6,0)
Transmission Oil Capacity, qts (L) – 5,0 (4,7)
JD 312 Wheels and Tires
Drive Wheels – 2WD
Steering Configuration – Front steer
Steering System – Manual Steering
Front Tire Size – 16×6.50-8
Rear Tire Size – 23×10.50-12
John Deere 312 Brakes
Brakes Location – Rear Wheels
Brakes Type – Shoe and Drum
Return-to-Neutral Braking – Standard
Dimensions and Weight
Wheelbase, in (mm) – 46 (1160)
Length, in (mm) – 69 (1750)
Height, in (mm) – 44 (1110)
Overall Width, in (mm) – 42,5 (1070)
Weight, lb (kg) – 760 (345)
John Deere 312 Attachments
38 Inch Mower Deck
Mower Deck Type – Mid-mount
Number of Blades – 2
Cutting width, in (mm) – 38 (960)
Overall width, in (mm) – 53,5 (1350)
Cutting height, in (mm) – 1,5-4,0 inch (30-100)
Weight, lb (kg) – 90 (40)
46 Inch Mower Deck
Mower Deck Type – Mid-mount
Number of Blades – 3
Cutting width, in (mm) – 46 (1160)
Overall width, in (mm) – 57 (1440)
Cutting height, in (mm) – 1,5-4,0 inch (30-100)
Lifting – Mechanical
Weight, lb (kg) – 125 (56)