Click for a closer view. It's a large picture, so be patient!
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Engine
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Make
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Onan
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Type
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4 cycle, 2 cylinder, air cooled
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Horsepower
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19-1/2
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Bore and Stroke
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3.25"x 3.00"
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Displacement
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49.8 cu. in.
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RPM
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3600
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Electrical system
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20 amp. flywheel alternator with silicone diode rectifier, transistorized temperature-compensated voltage regulator
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Ignition system
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battery ignition
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Battery
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45 ampere-hour-12 volt
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Power Train
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In-line hydrostatic transmission driving heavy duty, 3 speed sliding-gear transmission mounted in same case with 8-pinion spur gear limited-slip differential.
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Speeds
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(With agricultural tires, 3600 RPM engine speed)
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Range
Forward
Reverse
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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
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Dimensions
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Height (at steering wheel)
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48.0"
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Width Overall
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50.0"
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Length Overall
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85.0"
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Wheel Tread (with AG tires)
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Front 35.0"
Rear 34.0"
adjustable to Front 37.5"
Rear 40.0"
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Wheel Base
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56.0"
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Clearance - Front Axle
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15.0"
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Hydraulic Lift System
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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.
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Independent Power Takeoffs
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Front PTO is standard with electrically controlled clutch on engine crankshaft to drive front and center attachments. Rear electric PTO is optional.
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Shipping Weight
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1300 lbs.
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Click for a closer view
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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
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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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Click for a closer view
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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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