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Rockwell Porta Band, Model 725

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  • Rockwell Porta Band, Model 725

    Found one of these at a garage sale for $5. The big "however" is that it's got a few decades of caked-on grease, bird droppings and general neglect but it does work.

    During teardown, found that the drive pulley will not disengage from the sprocket beneath. The center spindle screw has been removed as well as the three, Phillips-head screws surrounding it and yet it won't budge. Only thing I feel (I think) is the pullley pulling up against the chain via the stuck sprocket.when I try and lift the drive pulley with my fingers.

    Doesn't make sense but I'm hoping someone's got a suggestion.

    Wondering if I should reinstall the base/pulley on the main body where the motor worm gear will hold the drive gear in place and then try tapping the pulley against the belt teeth to try and bust it loose. Failing that, use a heat gun and try to move it that way. I have some penetrating oil--Kroil--'working' on the parts for a couple of days now but so far, nothing's moving.


  • #2
    Need pictures
    When I get Time... I'll...


    • #3
      When you have a wheel like that, there is always a chance that the it's threaded, and a reverse (left hand) thread at that. . Noope. The parts list does not show a threaded spindle.
      At the end of the project, there is a profound difference between spare parts and left over parts.

      Location: SF East Bay.


      • #4
        Got the same saw. I don't recall anything holding it on other than what you described. Any luck so far?
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