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Engine
Make
Onan
Type
4 cycle, 2 cylinder, air cooled
Horsepower
19-1/2
Bore and Stroke
3.25"x 3.00"
Displacement
49.8 cu. in.
RPM
3600
Electrical system
20 amp. flywheel alternator with silicone diode
rectifier, transistorized temperature-compensated voltage regulator
Ignition system
battery ignition
Battery
45 ampere-hour-12 volt
Power Train
In-line hydrostatic transmission driving heavy duty, 3
speed sliding-gear transmission mounted in same case with 8-pinion spur
gear limited-slip differential.
Speeds
(With agricultural tires, 3600 RPM engine speed)
Range
Forward Reverse
Low
0- 4.2 mph
0-2.6 mph Medium
0- 6.3 mph
0-4.0 mph High
0-10.4 mph
0-6.2 mph
Dimensions
Height (at steering
wheel)
48.0"
Width Overall
50.0"
Length Overall
85.0"
Wheel Tread (with AG
tires)
Front 35.0"
Rear 34.0"
adjustable to Front 37.5"
Rear 40.0"
Wheel Base
56.0"
Clearance - Front Axle
15.0"
Hydraulic Lift System
Raises, lowers or
holds center mounted attachments. Will also perform these
functions for rear mounted attachments if tractor is equipped with
optional category "O" three-point hitch. Plug-in connection permits
movement of standard cylinder to front of tractor for raising, lowering
or holding rear or front mounted attachments. Optional extra hydraulic
cylinder performs the same functions without need for moving cylinder.
Independent Power Takeoffs
Front PTO is standard
with electrically controlled clutch on engine crankshaft to drive front
and center attachments. Rear electric PTO is
optional.
Shipping Weight
1300 lbs.
Click for a closer view
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Accessories
60" Mower
48" Rear Rotary Mower
48" Rotary Tiller 58" Sickle
Bar 52" Snow
Thrower
60" Snow Plow or Dozer Blade
60" Grader Blade
12" Mold-board Plow
Single Row Cultivator Front End
Loader
Optional Equipment
Agricultural
Tires
Turf and High Flotation Tires
High Capacity Front Tires
Front Weights
Front Bumper
Rear Wheel Weights
Tire Chains
Category "0" ThreePoint Hitch
Rear Power Take-Off
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[Source: Allis-Chalmers Brochure, The
New 620 Tractor, OP1124, Sep 72, courtesy of
Calvin Neely of Yankee Sales and
Service]
