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Re: Refurbishing a MkV 510

Posted: Thu Sep 23, 2021 2:51 pm
by John4337
pWhile I'm waiting on the bearings, on to other things. My new belts and speed control quadrant arrived today, so I swapped it out. Also cleaned up and de rusted the metal parts of the saw guard.

New and old
Speed Control 5.jpg
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worm gear is straight
Speed Control 6.jpg
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All back together
Speed Control 7.jpg
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Guard ready to go
Saw Guard 1.jpg
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Re: Refurbishing a MkV 510

Posted: Thu Sep 23, 2021 3:56 pm
by JPG
Of interest to 'us' is the fit of the new quadrant on the roll pin pivot and the clearance between the new quadrant and the legs the pivot pin is mounted to. A pix showing the alignment of the worm gear to the quadrant gear also. Might prevent reoccurence of that wear.

Re: Refurbishing a MkV 510

Posted: Thu Sep 23, 2021 4:27 pm
by John4337
JPG wrote: Thu Sep 23, 2021 3:56 pm Of interest to 'us' is the fit of the new quadrant on the roll pin pivot and the clearance between the new quadrant and the legs the pivot pin is mounted to. A pix showing the alignment of the worm gear to the quadrant gear also. Might prevent reoccurence of that wear.
it seems to fit well, no real play
speed control 8.jpg
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Speed Control 9.jpg
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Speed Control 91.jpg
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Re: Refurbishing a MkV 510

Posted: Thu Sep 23, 2021 4:29 pm
by JPG
Resist the temptation to force the speed adjustment towards slow and it may stay that well aligned.

Re: Refurbishing a MkV 510

Posted: Thu Sep 23, 2021 4:31 pm
by DLB
Earlier in this thread JPG recommended the Bill Mayo speed control improvement. Yes! It addresses a couple of things on the speed control to strengthen it and reduce wear. In your pic, I've circled one of the wear points as an example. Over time the hole in the legs sometimes gets enlarged by the reaming action of the spring tension (aka roll) pin being used as a hinge pin. Once there is wear in those holes the quadrant/porkchop can wobble a bit, accelerating the wear on both the gear and the holes.

Speed Control 7 (2).jpg
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The Bill Mayo improvement deletes the roll pin and replaces it with a screw. The quadrant rotates on the hinge pin rather than the pin rotating with the quadrant, and it strengthens the legs by tying them together. I've used a variant of it (larger screw or bolt) to save a speed control assembly that was junk because the highlighted holes were so enlarged.
Bill Mayo Headstock Improvement: download/file.php?id=34357

- David

Re: Refurbishing a MkV 510

Posted: Thu Sep 23, 2021 7:07 pm
by John4337
Ingenious solution.

Re: Refurbishing a MkV 510

Posted: Tue Oct 05, 2021 10:52 am
by John4337
Some house stuff pulled me away, but I'm back at it. While waiting for new bearings for the power shaft and quill, I started in on the jointer.
Jointer 1.jpg
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jointer 2.jpg
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jointer 3.jpg
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jointer 4.jpg
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jointer 5.jpg
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jointer 6.jpg
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jointer 7.jpg
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jointer 9.jpg
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After the evaporust bath
jointer 91.jpg
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Re: Refurbishing a MkV 510

Posted: Tue Oct 05, 2021 12:11 pm
by John4337
The knives cleaned up great. No nicks either.
jointer knives.jpg
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Re: Refurbishing a MkV 510

Posted: Tue Oct 05, 2021 12:15 pm
by chapmanruss
John,

It looks like you have gotten a good start on the Jointer. The rust looks like lighter surface rust only so it should clean up very well. Once the rust is removed, the bare metal is clean and any painting is done use that good ol' Johnsons Original Formula Paste Wax or similar to protect the bare metal. Do that before re-assembling the Jointer to get those spots that will be harder to protect once the Jointer is re-assembled. Wax on the contact surfaces between the Base/Outfeed Table and the Infeed Table will protect and provide lubrication there just as is desired on other surfaces having moving parts on them like the Way Tubes on a Mark V. Do make sure there isn't any paint on those surfaces. The Cutter Head can be waxed too including into the blade recesses. The knives are tapered and the wedges will hold them in even with the surface waxed. The benefit is rust protection.

The cleanup on the knives looks great but do sharpen them before using them.

Re: Refurbishing a MkV 510

Posted: Wed Oct 06, 2021 11:07 am
by John4337
Thanks Russ, that was my plan, I'm just happy the knives aren't all nicked up. looking forward to starting to put this thing back together. Bearings are slated to arrive Friday.