Question about die grinder

I found a Makita die grinder at the dump. It had a bad bearing, but I had one in my collection (I just love when it works that way!).

The question is about some grooves in the case & matching ones in the spindle:

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At disassembly they had gunk in them, I assume some kind of very old grease. I also assume that the purpose is to keep dust out - these are not bearing surfaces.

Does that sound right & ,if so, what grease should I use in re-assembly?

Thanks, Bob

Reply to
Bob Engelhardt
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There's more to the story. I already had a Makita die grinder exactly like the one that I found. I didn't want to take it apart 'cause it can be a pain to get back together & 'cause I expected that it would just have the same grease in the grooves. Which wouldn't help me know what kind of grease it was.

But your responses got me to wondering whether there was something other than grease there. So, I took the first one apart and found ... nothing! There was not even grease - the grooves were very nice & clean.

I've had this grinder apart before & it's theoretically possible that I had removed whatever was in there, but I doubt it. And the parts diagram doesn't show anything.

So, the question's not answered, but I don't care - I'm going to put them back together and use them.

Thanks for the replies, Bob

Reply to
Bob Engelhardt

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