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post #1 of (permalink) Old 03-04-2001, 07:56 PM Thread Starter
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How to tighten bench grinder wheel (don\'t laugh!)

Ok, so I'm not a pro. I got a 6" bench grinder and the wheels are really out of balance. It wibrates like hell. So I tried to rotate them to see if that helps and now I can't tighten the nuts enough. There's no way to lock the shaft so it won't turn and if I hold one wheel the other comes loose. I don't have an impact gun. Any trick to this?

'91 YJ,I-6,2.5" lift,Boomerangs,33s,D30,D35c,Lock-Right F&R and a light foot
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post #2 of (permalink) Old 03-04-2001, 08:12 PM
 
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Re: How to tighten bench grinder wheel (don\'t laugh!)

All I've ever done is hold one and tighten the other. There's no other magic, at least none that I know.

Ken

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post #3 of (permalink) Old 03-04-2001, 08:17 PM Thread Starter
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Re: How to tighten bench grinder wheel (don\'t laugh!)

I've tried holding the opposite wheel but then the shaft in that wheel turns. If I hold the wheel that I want to tighten then the shaft in that wheel turns! [img]/wwwthreads_images/icons/crazy.gif[/img] Nuts!

'91 YJ,I-6,2.5" lift,Boomerangs,33s,D30,D35c,Lock-Right F&R and a light foot
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post #4 of (permalink) Old 03-04-2001, 09:17 PM
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Re: How to tighten bench grinder wheel (don\'t laugh!)

Take one wheel off, and hold the shaft. Then tighten the wheel. Then put the other on and tighten it using the first wheel as a break. I've never had a problem, maybe something is messed up in there and you need new wheels.

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post #5 of (permalink) Old 03-04-2001, 10:01 PM
 
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Re: How to tighten bench grinder wheel (don\'t laugh!)

Use a vise grip on the shafts ...

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post #6 of (permalink) Old 03-05-2001, 12:02 PM
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Re: How to tighten bench grinder wheel (don\'t laugh!)

Left-hand thread??

post #7 of (permalink) Old 03-05-2001, 12:20 PM Thread Starter
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Re: How to tighten bench grinder wheel (don\'t laugh!)

Yes, the left shaft is left hand thread. That's why they alternately keep coming loose when I try to hold one wheel. I'll try to hold the shaft with a wise-grip but there is pretty slick. We'll see tonight. Also, is there a way to balance a wheel if it hits? Dressing stone maybe?

'91 YJ,I-6,2.5" lift,Boomerangs,33s,D30,D35c,Lock-Right F&R and a light foot
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post #8 of (permalink) Old 03-05-2001, 12:25 PM
 
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Re: How to tighten bench grinder wheel (don\'t laugh!)

If the wheel is off centered, try rotating the stone wheel (on the shaft) 1/4 turn at a time, tighten it down (using the vise grip) to see if you can get it more centered. Then use the dressing stone ...

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post #9 of (permalink) Old 03-05-2001, 12:26 PM
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Re: How to tighten bench grinder wheel (don\'t laugh!)

Forget about swapping wheels. Pick up a trueing stone. If your wheels are hard, you'll need a soft one. If they are soft, you'll need a hard one. Sometimes, a file, or a brick, can be used to true them.

Also, test the shafts to make sure they're running true. Remove the wheels. Turn on motor. Lay a flat tool on the spinning shaft. If it lays well, the shaft is true.

Joey

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