Cup wire wheel stuck on Angle Grinder.

[Dave Lehnert]

I have an 4 1/2" Angle Grinder with a cup wire wheel that is stuck on the grinder.
Any tips on how to remove it.

The Angle Grinder is a Sears Crafsman but looks just like a DeWalt.

[Mike Henderson]

I guess the first thing I'd try is to clamp the wire cup, maybe in my vise. Then use the shaft lock button on the angle grinder and turn the whole angle grinder in the proper direction to unscrew the wire cup.

Mike

[Mark Bolton]

A way to avoid this in the future is to leave one of your wheel washers or a backing washer between the cup wheel and the shoulder on the shaft. Many cup wheels have just the right radius/chamfer to really lock them on the shaft I've sheared the locking pin off trying to get them off. A good sharp blow on the wrench or some heat may help.

[Mike Weaver]

I was able to get mine off by using a helper to hold the grinder with the shaft lock button pushed in while I used a strap wrench on the cup wheel - near the top. It worked perfectly in my case.
Good luck!!

-Mike

[Alex Zeller]

I wrap mine in fabric, like a heavy shirt or towel so I can grab it with my hand without fear of the wires. 99% of the time that's all I need.

[Dave Lehnert]

Some good tips. I will give it a try.

Thanks

[michael langman]

On my bosch 4" grinder, if I do not remove the flange from the grinder spindle, used for cut off wheels, before putting on a wire wheel, I will not be able to put a wrench on the hex nut on the wire wheels.

[Mike Henderson]

I put a plastic washer on the shaft and that seems to make removal easier.

Mike

[Mark Bolton]

I put a plastic washer on the shaft and that seems to make removal easier.

Mike

Thats a great trick. I tend to just leave my back up washers on there and it serves dual purpose of not losing them and allowing me to spin the cup wheel off by hand when it has to come off.

[Charles Lent]

Does the wire cup have a hex shape on the top of it like mine? I use an adjustable wrench on this hex and strike the handle end of the wrench with a hammer. A sharp blow in the correct direction will knock it loose.

Charley

[michael langman]

That is what I do Charley. Does not take much of a tap for me.