Speed Control Concern

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Wazzuple
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Joined: Thu Jul 17, 2025 1:01 am

Speed Control Concern

Post by Wazzuple »

I had the speed control wheel come loose. I realigned it and tightened the set screw. However, I went a little too far and broke the tip of the Allen wrench in the recessed hole. Any suggestions? What would be the worst-case scenario? I was thinking I might need to cut the cover plate and then use an extractor to get it out and then replace the assembly. Feels like a headache.
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chapmanruss
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Re: Speed Control Concern

Post by chapmanruss »

I am not sure what you are describing. Pictures would help. When you say "speed control wheel" do you mean the part labeled Speed Control Handle below?

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Speed Dial w- arrows.jpg
Speed Dial w- arrows.jpg (63.56 KiB) Viewed 69259 times
Russ

Mark V completely upgraded to Mark 7
Mark V 520
All SPT's, 2 Power Stations & Crafter's Station
Model 10ER S/N R64000 first one I restored on bench w/ metal ends & retractable casters.
Has Speed Changer, 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E's S/N's 1076 & 1077 oldest ones I have restored. Mark 2 S/N 85959 restored.
Wazzuple
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Re: Speed Control Concern

Post by Wazzuple »

You are a saint for responding. You can see the silver part that broke off in the set screw.
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DLB
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Re: Speed Control Concern

Post by DLB »

My first step would be to see if the combination of gravity and vibration may cause the Allen wrench piece to fall out. You'll get the most vibration at the highest speed, so try the highest speed available with the set screw opening pointed downward.

- David
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chapmanruss
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Re: Speed Control Concern

Post by chapmanruss »

Since the Allen Wrench end broke off in the set screw it's a good bet it is pretty stuck in the set screw. I'm guessing the Allen Wrench broke off flush with the top of the set screw. You can try David's suggestion first. It's the less drastic approach. Next might be drilling out the Allen Wrench and set screw while it is still mounted on the Speed Control Assembly. Hopefully this can be done without damaging the threads on the Speed Control Handle. It may require cutting off the Handle around the center area to better get at the set screw. In that case damaging the threads in the Handle is of no concern. Cutting up the Speed Control Handle will require getting a replacement. Hopefully you can avoid damage to other parts.

Keep in mind most of the parts in the area you will be working around are cast aluminum.
Russ

Mark V completely upgraded to Mark 7
Mark V 520
All SPT's, 2 Power Stations & Crafter's Station
Model 10ER S/N R64000 first one I restored on bench w/ metal ends & retractable casters.
Has Speed Changer, 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E's S/N's 1076 & 1077 oldest ones I have restored. Mark 2 S/N 85959 restored.
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JPG
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Re: Speed Control Concern

Post by JPG »

A super strong skinny super magnet???
╔═══╗
╟JPG ╢
╚═══╝

Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10
E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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jsburger
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Re: Speed Control Concern

Post by jsburger »

JPG wrote: Mon Jul 28, 2025 7:31 pm A super strong skinny super magnet???
Good luck with that! :rolleyes:
John & Mary Burger
Eagle's Lair Woodshop
Hooper, UT
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JPG
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Re: Speed Control Concern

Post by JPG »

Wishful
'thinking"! :rolleyes:
╔═══╗
╟JPG ╢
╚═══╝

Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10
E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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jsburger
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Re: Speed Control Concern

Post by jsburger »

:D
John & Mary Burger
Eagle's Lair Woodshop
Hooper, UT
HopefulSSer
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Re: Speed Control Concern

Post by HopefulSSer »

Worst case, a new replacement is about $50

https://www.shopsmith.com/product-page/ ... rol-handle
Greenie SN 362819 (upgraded to 520), Bandsaw 106878, Jointer SS16466, Speed Reducer 031391, Belt Sander SS48854
Mark V 510 51-014654
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