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4100 Fire Truck - The Klixon start relays are sealed units...correct? You mentioned cleaning contacts? There should be relays available out there to get you up and running. They don't make bench grinders like that anymore.
My grinder does not have, or use a capacitor. It uses a Klixon 4CR starting relay in series with the start/run windings. It also needs to be an exact match for the motor size too. I don't know if I want to go to the trouble to find a pricy replacement and have it still not work.
Pulled it back apart today to troubleshoot with my meter. Good thing I didn't buy a relay. The start winding was open. Guess I'll spin start it and start shopping for another good used one, instead of a cheap new one. I really like the 3/4hp 8 inch size. Not too big, not too small. I just came up with an easy way to spin start it. Took a 3 in wire wheel in my cordless drill and held it up to the wire wheel on the grinder to bring it up to starting speed, and flip the switch and away it goes.
Last edited by 4100 Fire Truck; Tue Nov 19 2019 08:47 PM.
We are lucky here in Southern Maryland, we have an electric motor shop that handles these small jobs. I took my locked up swimming pool pump motor in and they checked it out and added new seals and a bearing and the bill was $33.00.
Check your area to see if you have a motor shop that can help.
Hope your using a face shield...but then again that jump start method sounds risky. A wire spinning wheel engaging into another non spinning wire wheel.....hello? Hate wire wheels....had a piece of wire removed from the cornea of my right eye awhile back. Got lucky....healed w/o any significant vision loss.
I don't have any experience with a variable speed bench grinder like the Shopfox and I can see pros and cons. Would that speed controller be hard on the motor windings? I can purchase the 8" Jet thru NAPA for $250.00. I'm still searching Craig's List..........
As more and more vocational shops in high schools get closed down, it's possible to find very high quality, lightly used professional-grade tools and equipment at fire sale prices from the local school system surplus property departments. I've seen grinders, welders, wood and metal working equipment and even lathes and milling machines go for virtually scrap iron prices. Once us old geezer mechanics, machinists, welders, plumbers and woodworkers pass on, there won't be many young folks coming along to take our places. They're not being trained in any significant numbers. Jerry
The murder victim was drowned in a bathtub full of Rice Krispies and milk. The coroner blamed the crime on a cereal killer!
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Not many, but some will find a way. Some youngsters are born with a curiosity of how things were done before they showed up! And hopefully, they are smart enough to go find a library that hasn't closed down to study up on the subject!!