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Re: Quill return spring...

#259727 by rjent » Sat May 18, 2019 12:30 am

buck wrote:i need one ,what info do you need so i get the right one


The spring is repairable most of the time. In a pinch, I believe you can get a Mark V quill spring to work.

Can you take a picture of what you have and your problem?

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Dick

1965 Mark VII S/N 407684
1951 10 ER S/N ER 44570 -- Reborn 9/16/14
1950 10 ER S/N ER 33479 Reborn July 2016
1950 10 ER S/N ER 39671
1951 jigsaw
1951 !0 ER #3 in rebuild
500, Jointer, Bsaw, Bsander, Planer
2014 Mark 7 W/Lift assist - 14 4" Jointer - DC3300
And a plethora of small stuff .....


"The trouble with quotes on the Internet is that you can never know if they are genuine." - Benjamin Franklin

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Re: Quill return spring...

#259728 by JPG » Sat May 18, 2019 9:35 am

buck wrote:i need one ,what info do you need so i get the right one

ANY shopsmith quill return spring(including model 10's) will work.

521875 includes the housing.

Used can be obtained on e-bay etc.

Replacing it into the housing can be difficult and a religion test.

Also it IS possible to add the slotted hole to one that is broken. Not easy either.

P.S. Reinstalling a spring etc. onto the shaft can also be very trying.

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╔═══╗
╟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'/ 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: Quill return spring...

#264187 by johnkgerken » Wed Oct 30, 2019 9:37 pm

Hi all,

I hope it's OK that I'm bumping this thread instead of a new one. I thought it would be best to keep the information together.

I'm in the process of reassembling my headstock, so the thing has been completely apart. I reinstalled the quill feed pinion and associated parts, followed by the drive sleeve assembly (with new bearings and belt). All appeared fine until I tried to reinstall the quill assembly and started to turn the pinion the requisite 3.5 times. What it felt like was the spring slipping off of the pin on the shaft. I'd get a bit over one complete turn and then hear a pop and the tension would release. So I took the thing apart and here is what I found:
IMG_4094.small.jpg
IMG_4094.small.jpg (433.89 KiB) Viewed 2598 times

IMG_4095.small.jpg
IMG_4095.small.jpg (461.6 KiB) Viewed 2598 times


What's the diagnosis and cure here, guys? From this thread, it seems one possible solution is to remove the spring, cut off the interior end where it's slipping and redrill the holes. But I also want to make sure that I'm not doing something wrong during the reassembly phase. Is there anything that I should be doing to help that spring seat properly on the pin? Is there anything I could/should do to the pin to help it seat more reliably?

Thanks for your help!
John

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Re: Quill return spring...

#264188 by JPG » Wed Oct 30, 2019 10:58 pm

I would CAREFULLY straighten** the END of the spring so the very END does NOT ride on the quill shaft(in it's current state the end is preventing the pin from entering the hole*).

Then form(bend) further from the end so the spring will naturally lie in the path of the pin.**

The intent is to allow the pin to slide into the hole as the shaft is rotated.


* It is not clear in your pix, but the hole should be key hole shaped with the narrow slot end towards the end of the spring.

** the end must retain a curve radius about equal to the shaft diameter and lie slightly inside the location where the shaft will be. Much easier to do than to describe!

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╔═══╗
╟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'/ 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: Quill return spring...

#264206 by chapmanruss » Thu Oct 31, 2019 11:47 am

It is hard to tell from your picture but is the end of the spring split between the hole and the end or is it just scratches from the pin? If it is split it is always going to come "off" the pin every time it is being put under tension. If this is the case you should consider getting a new spring or a good used one. It also appears that the end has broken off at some point as noted by the shorter distance between the end of the key hole and the end of the spring. The key hole doesn't look right in the picture as JPG has also noted. The end may have broken off or was damaged and a new pin hole was made next to the new end point. If you have already read this thread you know that the spring is the same from the first Model 10E's to the current Mark machines so any used spring in good condition will work. A new one from Shopsmith will come already installed in the spring housing.

If you are keeping the spring follow JPG's advice. Below is a Spring from an early Model 10ER to help show the spring curve JPG talked about.

102-28 Spindle Return Spring labeled r.jpg
Note the inside curve of the spring
102-28 Spindle Return Spring labeled r.jpg (308.12 KiB) Viewed 2540 times

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Russ

Mark V 520 S/N 09-11-01 completely upgraded to Mark 7, with all SPT's & more.
Model 10ER S/N R64000 first one I restored on bench w/ Shopsmith metal ends & retractable casters. Has Speed Changer, Model 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E S/N 1077 oldest one I have restored. On bench w/ Shopsmith metal ends & retractable casters.

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Re: Quill return spring...

#264207 by johnkgerken » Thu Oct 31, 2019 4:52 pm

Heh, I think I got it. I was testing it and tried to take it back off and now it's not even coming off. ;-)

Thanks, guys.

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Re: Quill return spring...

#264214 by johnkgerken » Thu Oct 31, 2019 7:43 pm

Uh..., no. Reinstalled it, gave it not even one twist and heard a snap. <sigh/>

I took it back apart and this time the end snapped off, so I guess this time I have to take it out and try to put new holes in it. I'm pretty sure that's already been discussed in this thread, so I'll review it again and see what I can come up with.

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Re: Quill return spring...

#264244 by chapmanruss » Fri Nov 01, 2019 12:11 pm

Since the end snapped off and it appears that was not the first time, you should replace the spring or you may end up chasing that problem until there is no spring length left.

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Russ

Mark V 520 S/N 09-11-01 completely upgraded to Mark 7, with all SPT's & more.
Model 10ER S/N R64000 first one I restored on bench w/ Shopsmith metal ends & retractable casters. Has Speed Changer, Model 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E S/N 1077 oldest one I have restored. On bench w/ Shopsmith metal ends & retractable casters.

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