Powermatic 1150 - Damage Check

[NT55693]

After a complete tear down and quick grease cleanup I decided to take a couple photos of the obvious damage of the machined parts on the drill press I bought. Before I go off and throw money at a bad machine I wanted to get a second opinion.

From what you see here, are these components in decent enough shape to be worthy of a complete machine overhaul/restoration?

Pinion drive (2 pics) - 2 damaged teeth. 1st is worst, 2nd is not so bad.
Quill body - Set screw vertical gouge
Spline/pulley adapter tube - Set screw indentation on milled surface.

 

[454ragtop]

no pics

 

[lafester]

Doesn't look terrible to me. How does it run?

Sent from my SM-P205 using Tapatalk

 

[American Locomotive]

After a complete tear down and quick grease cleanup I decided to take a couple photos of the obvious damage of the machined parts on the drill press I bought. Before I go off and throw money at a bad machine I wanted to get a second opinion.

From what you see here, are these components in decent enough shape to be worthy of a complete machine overhaul/restoration?

Pinion drive (2 pics) - 2 damaged teeth. 1st is worst, 2nd is not so bad.
Quill body - Set screw vertical gouge
Spline/pulley adapter tube - Set screw indentation on milled surface.

Quoting to help others.

 

[dutchgray]

Put it back together properly and run the thing, that will tell you if its ok or not, that kind of damage / wear is very mild for a used machine, set screw damage is very common to find, someone has had it apart and didn't take enough care putting it back together is all.

 

[NT55693]

I should have known better than to try photos so soon.
They are all screwed up above now.
Probably my new member post count is too low.

Thanks to American Locomotive for the quote to try and get the photos up.

Thank you also for the responses.


On the parts:
I didn't think this wear was obscene, just wanted to get a second opinion.

The pinion gear wear comes from excessive feed pressure I would assume?

- Looking at the parts explosion, I think I can rotate the pinion shaft to minimize the amount of times the two bad teeth are in contact with the quill body.
- Spring return body is mounted on this shaft and is keyed for 2 orientations, but it is shaft position independent on the whole.
- The handle hub orientation will be affected as it is 1 orientation keyed, but there is likely a middle ground to be had with minimal bad teeth contact and comfortable start handle position.


The set screw on the spline adapter is what worried me the most due to the thin metal thickness under the set screw. I don't have an appropriate micrometer to measure what material is left, but looking at this assembly it appears as though this set screw is the only thing keeping the pulley on the shaft.

Should this present as an issue later (pulley spin-off or slipping), I suppose my options for a fix would be:
1) A newer spline adapter part without the indentation; OR
2) Drill & tap a new set screw hole on the next step down to get on a fresh flat surface; however this is a balanced pulley and I'm uncertain if this move would affect the balance?
- The new weight location is small and close to center of rotation so the centrifugal force is minimized, maybe the effect is small enough...

 

[American Locomotive]

I wouldn't worry about a set screw that far inward causing an issue. If you're super worried about it, you could loctite the whole pulley to the shaft (just remember you'll need heat to get it off next time!)