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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.


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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]

 

 

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