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Compare the specifications of the different models, below. Or,
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including the
1971 Flyer.
GENERAL SPECIFICATIONS
310
310D
312
312D
312H
314
314D
314H
ENGINE
Horsepower
10
10
12
12
12
14
14
14
Kohler
x
x
x
x
x
x
x
x
Type
4 Cycle - Single Cylinder - Air Cooled
Bore and Stroke
3.25 x 2.88 in.
3.38 x 325 In.
3.50 x 3.25 in.
Displacement
23.9 Cu. In.
29.07 Cu. In.
31.77 Cu. In.
RPM
3600 at Rated Horsepower
Starter
Gear Drive Electric Stating Motor
Governor
Precision, Oil Bathed, Flywheel Type with
External Adjustment
Electrical System
15 AMP Output Alternator, Solid-State
Voltage
Regulator-Rectifier
Ignition System
Battery Ignition (Breaker Points or
Breakerless Alternator)
Air Cleaner
Replaceable Dry Element Type
OIL
AIR TEMPERATURE --- OIL VISCOSITY (Weight)
--- OIL TYPE
Above 300 F -- SAE 30 -- API Service "SC" ("MS")
Severe Duty
300 F to 00 F -- SAE 10W30 -- API Service "SC"
("MS") Severe Duty
Below 00 F -- SAE 5W-20 --
API Service "SC" ("MS") Severe Duty
BATTERY
Allis-Chalmers, 40 AMP Hour, 12 Volt
TRANSMISSION
Slipping Spur Guar and Spiral Bevel Gear,
21 Speeds Forward and 7 Reverse with Standard Variable Pitch Sheave System
Hydrostatic Drive w/Piston Pump and Piston
Motor
Slipping Spur Guar and Spiral Bevel Gear,
21 Speeds Forward and 7 Reverse with Standard Variable Pitch Sheave System
Hydrostatic Drive w/Piston Pump and Piston
Motor
DIFFERENTIAL
Planetary Gear with Controlled Traction
CAPACITIES
Engine Crankcase
2 Quarts
Fuel Tank
2.25 Gallons
Transmission
1.5 Quarts (80 EP Oil)
Bevel Gear Housing
1Pint (80 EP 0il)
Hydrostatic Pump Housing
1-3/4 Quarts
(Dexron) ATF
1-3/4 Quarts (Dexron) ATF
SPEEDS
7 Speed Ranges
Variable
from 0 to 8.1 MPH forward and 0 to 3.9 MPH reverse
7 Speed Ranges
Variable from 0 to 8.1 MPH forward and 0
to 3.9 MPH
reverse
First
0.8 - 1.5 MPH
0.8 - 1.5 MPH
Second
1.9 - 3.4 MPH
1.9 - 3.4 MPH
Third
3.1 - 5.7 MPH
3.1 - 5.7 MPH
Reverse
1.6 - 2.8 MPH
1.6 - 2.9 MPH
GENERAL
SPECIFICATIONS
(Continued)
310
310D
312
312D
312H
314
314D
314H
DIMENSIONS
Height at Steering Wheel
43.0"
Height
at Instrument Panel
39.0"
Width
overall
34.5"
36.5°
Length
Overall
74.0"
Wheel
Tread
29.7" front,
26" rear
30.7"
front; 28.0" rear
Wheel Base
48.1"
Clearance
(Front Axle Mounting Bracket)
8.0"
Clearance
(Final Drive Gear Case)
6.0"
Clearance
(Drawbar)
7.5"
TIRE SIZE
Front
4.80/4.00 x 8
(10 PS )
16-6.50
x 8
(10 PSI)
Rear
23-8.50 x 12
(8 PSI)
23-10.50 x 12
(8 PSI)
SEAT
Standard
Deluxe (Optional Arm Rests)
Standard
Deluxe
(Optional Arm Rests)
IMPLEMENT LIFT
Manual
Electric
Manual
Electric
Electric
Manual
Electric
Electric
POWER TAKE OFF
(Front)
Manual
Electric
Manual
Electric
Electric
Manual
Electric
Electric
LIGHTS; LIGHTER
Optional
Optional
Optional
Optional
Standard
Optional
Standard
Standard
SHIPPING WEIGHT
794 lbs.
804
lbs.
846
lbs.
804 lbs.
846 lbs.
[Source: Allis-Chalmers 300 Series Owners
Manual, courtesy of Sam Ericson]
