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McGill switch from a NOS Block grinder doesn't work... any hope to fix?

lafester

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Mar 1, 2017
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Location
Northern CO
I have a new block grinder, but testing it out the switch doesn't work. I guess I know why it was never used.
Has anyone taken one of these apart? Is there any hope of fixing it?
It feels fine when switching, not loose or tight.
 

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The Cobbler

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Oct 24, 2013
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25,953
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Niagara Region, Ontario, Canada
if it's broken, you have nothing to lose trying to fix it.
if you can get into it non destructively , it might be worth a shot. but you may end up with parts flying , no where to be found again, too , or not being able to figure out how to get it all back together
Good luck. :lol_hitti
 

RTM

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May 13, 2019
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SF Bay Area
That looks a bit new to be serviceable, w/o breaking stuff. I took one apart on my trucks power window switch (2006), and we all survived. Maybe google for instructions?

This is similar design, but may be reversing, May fit in the whole. Other options out there at that current rating, maybe just not there.

 
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HundScheisse

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Joined
Apr 9, 2024
Messages
2
Before you take it apart, try spraying a good shot of Contact Cleaner into any small openings in the switch and work the switch back & forth a dozen times. I have rescued dozens of "Broken" switches using this technique. Internal corrosion can keep current from flowing, particularly if you live in a coastal area.
 
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