U.S. Electrical Tool Co. Grinder restoration

[dngrmse]

Well, I figured I'd start a thread on the restoration of this Grinder, so far it's been a fun project.
The Grinder is a US Electrical Tool Co. combination grinder. I reached out to the manufacturer for a date, but have not heard back from them as of yet.

As found:
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Beginning disassembly; Appears to have been used for wood, that's caked on sawdust.
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Here's the switch assembly, along with the old crusty wires.
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Guards are off, I think the bracket in the rear corner was most likely for a worklamp
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Looking for the seam, found alot of "casting filler" but no seam.
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Measuring so I can know how it goes back together; turned out to be unnecessary, as the shaft has a step that wont let the guard go past that point.
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There's the seam! And those are the Pin spanners I had to buy at HF to take it apart. Cheap and flimsy, but they served their purpose.
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The parts are starting to pile up.
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The motor and the dust/dirt that's built up:
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SKF 6204 bearings wonder if they are original
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[dngrmse]

So from the condition of the motor and the wiring I decided to take it to an electrical motor shop to see what they could for me in terms of cleaning it up as I know these can be rather fragile. They tested it and sure enough, there leads were shorting out. They said that most likely it would need to be rewound, and it wouldn't be worth it. They quoted me approximately $600. The motor was running when I bought it, but they told me it was just a matter of time before it burned out. I asked if there was any other options, and they told me that they could try cleaning it up in their solvents, and baking it to dry at 200 degrees for a day or so.

Picked it up earlier today, and I was happy to hear that when they re-tested it it was no longer shorting or arcing and it was testing out fine. Felt like I hit the lottery.

On with the disassembly- here is the tag removal- these are those rivets that are kind of like little nails, forget what they are called:View media item 67876

 

[mkmick]

Wow, seeing the inside of your grinder makes me wonder what's inside of mine. Looks like a good project. Nice.

 

[dngrmse]

Thanks, my next steps are to order some bearings- these feel good, but I'd like to replace them with shielded ones just the same. I was able to pull one out with my fingers, I was expecting them to be pressed on a little tighter. The other came out easily enough, but I did have to tap it lightly with a screwdriver to coax it out.

 

[tombell572]

The small fasteners attaching the tag are drive screws. McMaster Carr has them-you'll need to buy a box-cheap enough and will last a lifetime.

Tom B.

 

[Cahark]

Love it. Keep it coming!


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