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Maintenance Mark VII

#274431 by Obryan1526 » Mon Sep 14, 2020 3:06 pm

Hello everyone just bought a shopsmith VII thinking it was the same as the mark 7 so I figured if I needed parts I can shop online no big deal welp Big deal I can’t find any parts because the company that made this shop smith went out of business!!!im looking for this part and I’ve been searching everywhere I hope someone may have one!!! The piece on the end popped off and I’m thinking it was held in with some bearings? I don’t know new to the machine!

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1602E4F8-6728-4131-9C15-356C9F84092E.jpeg
1602E4F8-6728-4131-9C15-356C9F84092E.jpeg (78.19 KiB) Viewed 1549 times

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Re: Maintenance Mark VII

#274432 by JPG » Mon Sep 14, 2020 3:28 pm

Is it attached to the hub/is the hub cracked/broken?

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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'/ 10E(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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Re: Maintenance Mark VII

#274435 by Obryan1526 » Mon Sep 14, 2020 4:12 pm

The piece I circle popped off which I believe
Was held in by some bearings nothing is cracked or broken .

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Re: Maintenance Mark VII

#274439 by JPG » Mon Sep 14, 2020 5:09 pm

The 'yoke' with two pins s/b attached to the inner race of the bearing staked onto the end of the hub of the control sheave.

Are you saying that "u" shaped piece is separated from the bearing and the bearing is still tight in the control sheave hub?

A better pix(higher resolution) may provide clues as to how to overcome this.

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╟JPG ╢
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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'/ 10E(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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Re: Maintenance Mark VII

#274441 by Obryan1526 » Mon Sep 14, 2020 6:43 pm

Yes the u shaped piece has separate bearing are no longer there at all. I left the piece at work I can take a pic tomorrow and show you

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Re: Maintenance Mark VII

#274447 by Obryan1526 » Tue Sep 15, 2020 11:37 am

4750A093-34FF-48D4-B45F-3A82BF7B9213.jpeg
How to fix?
4750A093-34FF-48D4-B45F-3A82BF7B9213.jpeg (260.41 KiB) Viewed 1470 times

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Re: Maintenance Mark VII

#274457 by JPG » Tue Sep 15, 2020 2:27 pm

News Flash!
Not Good! :(

The "u" shaped piece is still attached to the bearing inner race.

The bearing outer race is still attached to the control sheave.

The ball bearings are ???????

Hard to tell if there is enough meat left to use the control sheave after removing the bearing outer race.

Removing the "u" shaped piece is questionable.

So 'best' solution is to acquire a 'working' MVII control sheave(not often found).

IIRC the M5/MV control sheave can be machined to match a MVII control sheave(the hub is shorter).

Coming up with a bearing with "u" shaped piece still attached is very unlikely. That will require some machining expertise.

Wish I had better 'news'.

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╟JPG ╢
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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'/ 10E(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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Re: Maintenance Mark VII

#274459 by everettdavis » Tue Sep 15, 2020 2:38 pm

In addition to this question I was wondering what the condition of the speed control cam that interfaces with the control sheave is.

As JPG instructs, it will take some machining.

Everett

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Re: Maintenance Mark VII

#274461 by Obryan1526 » Tue Sep 15, 2020 2:51 pm

I’ve had to replace it since it was melted, the new cam should be here on Thur

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Re: Maintenance Mark VII

#274463 by Obryan1526 » Tue Sep 15, 2020 2:57 pm

Half tempted to just go buy mark V

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