Mark V tripping breaker

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JPG
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Re: Mark V tripping breaker

Post by JPG »

Is the motor belt of shopsmith origin? Is it just over 1/2" wide at the outer edge? It is a non-standard length(26.5") and width.

Realize the outer dial(speed indicator) is set after the high speed adjustment.

If the motor belt drops too far into the pulleys(sheaves opened) the belt can get caught(jam) between the sheave vanes(either one).

Assuming the motor belt is correct, again set the belt to ride near the outer edge of the motor pulley, pull the speed control knob and adjust the high speed stop, then set the outer dial to fast and replace the control knob. Do observe the setting of the stop screw and lock nut.

If the belt is not SS OEM, any attempt is likely futile(it really really really really matters).

BTW the poly-v belt should rest in the third groove from the front(towards the quill shaft) of the drive sleeve pulley.


Finally 5200 rpm really sounds fast!
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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'/ 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
dsinsley
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Location: Post Falls, ID

Re: Mark V tripping breaker

Post by dsinsley »

The belt is 1/2 wide. Don't know about the length but I am guessing it's the right one. I have the poly v belt set on the quill shaft as you describe. It was the lower shaft that it jumped a groove. That problem is fixed. The 5200 rpm I could be wrong on but I think that's what I read in the manual I downloaded from them. That doesn't do me any good anyway because I have no way to measure it. So I will resume with the belt method. At this point the belt is where it needs to be I just have to start the actual adjustments
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JPG
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Re: Mark V tripping breaker

Post by JPG »

dsinsley wrote:The belt is 1/2 wide. Don't know about the length but I am guessing it's the right one. I have the poly v belt set on the quill shaft as you describe. It was the lower shaft that it jumped a groove. That problem is fixed. The 5200 rpm I could be wrong on but I think that's what I read in the manual I downloaded from them. That doesn't do me any good anyway because I have no way to measure it. So I will resume with the belt method. At this point the belt is where it needs to be I just have to start the actual adjustments
5200 rpm is a published fact. It is also a fact that 5200 sounds very fast to ears not accustomed to stuff running that speed. It is also quite noisey.
╔═══╗
╟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
dsinsley
Gold Member
Posts: 68
Joined: Wed Apr 15, 2015 10:21 am
Location: Post Falls, ID

Re: Mark V tripping breaker

Post by dsinsley »

Ah,

I see your not saying 5200 is too fast just that for me it will sound fast. Gotcha.
backhertz
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Re: Mark V tripping breaker & other self-inflicted problems

Post by backhertz »

I started rebuilding 3 headstocks (500 & two 510s) in 2007. A friend gave me an old seized up Greenie- leaving me 4 to rebuild shortly thereafter. I had taken the 3 headstocks & motors completely apart & put the pieces in baggies/boxes while I waited for the bearings. One thing led to another & a complete renovation of my home began- everything got pushed to the back of the basement.

Two weeks ago, I cleaned out the basement & brought all my Shopsmiths out to my garage & new shop extension. During the past few years, I’ve spent time with Bill & Ann Mayo. Bill has forgotten more about Shopsmiths than I will ever hope to learn. He's shared many tricks of the trade along with how to modify the motors with a DPDT forward/reverse switch. He showed me how to assembly a bandsaw & a belt sander from parts- without needing to refer to any diagrams.

I put together my 3 Mark V puzzles and then attacked the Greenie. Only two ran smoothly when I powered them on. The 500 & Greenie were showing the same symptom: running slow & then the 20-amp circuit breaker would trip. The common denominator? Me. I was working in the late afternoon/evening up till 10 PM before I stopped.

I thought it was the motor at first, until I switched the motors with the two left over from my PowerPro upgrades and experienced the same symptom. It was back to the drawing board. I took my time & reassembled the headstocks & voila! They all work. I substituted a 1 1/8th HP Emerson for the 3/4 HP A.O. Smith out of the Greenie. That Greenie hadn’t run in over 20 years.

On the 500, the quill spring kept jumping off the tiny stud, but I got it right. On one of the 510 headstocks- someone had taken the quill Allen setscrew and replaced it with a regular Allen screw- that was a hair puller. Putting the motor start switch on the 1 1/8th HP A.O. Smith motor back together after almost 9 years was also a challenge without a picture.

I made a mistake of preloading the quill & then locking it down on the 500. I tried to fit the quill & it would only go about 1/2- 3/4” into the headstock. Turned out to be the quill lock was distorting the headstock enough to prevent the quill from slipping in. Don’t do that.

I have several types of double bearing quills. One though I believe might be epoxied above the second bearing- anyone know how to get it apart? A torch?
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