Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

  • Sign in to follow this  

    Rotary Mower


    Click for a closer view
    1690074.jpg (27784 bytes)

    1690074 - Rotary Mower 60"

    Mower deck follows ground contour . . . front of mower is supported by and tilts with front axle.  Rigid torsion bar connects front support arms so that front tractor wheels can adjust mower tilt to match ground contour.  Full width rear rollers average out minor ground irregularities.

    Short mower wheelbase minimizes scalping crowned surfaces. Anti-scalp rollers inside housing provide additional support for more uniform cutting height. Clippings are dispersed evenly . . . deep mower deck with clean interior, and high-lift blades, mix clippings with a large volume of air and spread them out uniformly over a large area. Ruggedly built for long, useful life. Versatility . . . deep deck permits effective mowing of tall grass and weeds.  Safe . . . cushioning V-belt drive protects mower when blade strikes solid object.  Requires hitch assembly, 1600328.

    Effective Cutting Width


    Height of Cut

    1-5/8" to 3"

    Type of Adjustment 

    Twin self-locking stepless screws



    Width (across tractor)


    ength (front of hitch to rear of rollers)



    Height (ground to top of mower)


    Overhang (left side of tractor)

    Agricultural tires (widest position) 8"

    Turf Tires 4-1/2"

    High flotation tires 1-1/2"

    Blade Arrangement 

    Three staggered over-lapping 21" blades

    Mower Input Drive 

    V-belt through electric clutch

    Blade Drive 

    V-belt with spring-loaded idler

    Spindle Bearings

    Caged rolling contact, grease lubricated 

    Weight (approximate)

    290 pounds

    Source:  Dealer Sales Information, 720 Series Tractors, date unknown, courtesy of Del Allen.

      Report Post
    Sign in to follow this  

    User Feedback

    Recommended Comments

    There are no comments to display.

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now