How to loosen a grinder disk that was tighted to tight?

Yeah, this has a spindle lock on it, and the tool to loosen and tighten they supplied with it is now bent. I will try the WD40 and see if that works. If not, I will try to try to take the disk out piece by piece. Not much left of the disk now to get much of anything on it.

Originally Posted by tjlock

Yeah, this has a spindle lock on it, and the tool to loosen and tighten they supplied with it is now bent. I will try the WD40 and see if that works. If not, I will try to try to take the disk out piece by piece. Not much left of the disk now to get much of anything on it.

Sounds like the last grinder I had and broke the pins off off the wrench. Does yours have 2 holes in the nut and is smooth/round? Try grabbing it with visegrips.

Originally Posted by IdahoScrapper

Sounds like the last grinder I had and broke the pins off off the wrench. Does yours have 2 holes in the nut and is smooth/round? Try grabbing it with visegrips.

That nut is made to be turned with equal pressure from each side, as to not put pressure on the threads.
With a pair of Visegrips the pressure is applied to only the sides of the nut, thus making it oblong, making it even tighter against the threads on the shaft.

Originally Posted by injunjoe

That nut is made to be turned with equal pressure from each side, as to not put pressure on the threads.
With a pair of Visegrips the pressure is applied to only the sides of the nut, thus making it oblong, making it even tighter against the threads on the shaft.

For what it was worth, it worked for me. You don't want to make it super tight and crush it, just enough pressure to bite it and turn.

Originally Posted by IdahoScrapper

Sounds like the last grinder I had and broke the pins off off the wrench. Does yours have 2 holes in the nut and is smooth/round? Try grabbing it with visegrips.

Yup, that is what mine has. I managed to get it of of there. I think I damaged something though. Put the new disk on, plugged it in and the bladed spins half a turn and stops. I'll take it apart and see if the gears are not lined up correctly and try to get it running. If not, guess I will spend another $13 while it is on sale. Glad the housing is cast aluminum.