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  1. 16th May 2022, 07:46 PM #1
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    colbra
    colbra is offline SENIOR MEMBER
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    Default Excalibur speed control

    Hi all, can someone give some help please, on my Excalibur scroll saw first off it is about 15 to years old has not had a lot of work.
    What my problem is the switch and speed control are not operating properly I think they may have a high resistance fault from dust getting into the things.
    Is the speed control a wire wound resister, would clearing it be ok with liquid Freon . Or could I get a replacement if so, were from and what would the electrical value of Pot / wire wound resistor be
    Regards colbra
    May your saw stay sharp and your nails never bend
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  3. 17th May 2022, 03:27 AM #2
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    Default

    https://www.brimarc.com/downloads/953432_manual.pdf

    Page 23 part A31 VR ....

    It looks to be just a 240v variable resistor. I'd wager one could blast it out with compressed air. Some shellite would work too (but let it dry right out, or use a heat gun/hair dryer)

    Freon is bad.

    Seyco, The Scroll Saw Specialists, INC has new ones for $37...

    Edit -- this dude talks about cleaning up misbehaving potentiometers, worth a read: Michael Shell: Fixing Scratchy Potentiometers
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