dana
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« on: December 28, 2015, 01:51:45 pm » |
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 Hi all- I'm in the process of trying to remove the bearings from my arbor, since one of them needs to be replaced. I have my LU6X parts list and diagram in front of me, and have taken all the screws out (I think), but I don't know how to remove the retaining ring or the insulating bushing, and so I can't get the bearing off. Anyone know how to do this? Your advice would be much appreciated!
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Debbie K
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« Reply #1 on: December 28, 2015, 04:08:03 pm » |
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Dana:
It's been a while since I took mine apart, so I don't remember too clearly. But you need some snap-ring pliers; any hardware store or Harbor Freight should have them. As I remember, it was pretty straightforward. I didn't have a manual and I replaced my bearings. Just look for a set screw on anything that's on the arbor.
To save you future angst, I'd advise you to replace BOTH bearings while you have it apart.
Debbie K
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dana
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Posts: 12
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« Reply #2 on: December 29, 2015, 08:33:33 am » |
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Thanks Debbie-
I didn't know about the pliers; I'll pick one up. And I am planning to change both bearings- that sounds like good advice! Still can't get the bearing cases to move at all, but maybe once I get the retaining ring off, it'll move? Anyhow, thanks for the tips!
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Debbie K
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« Reply #3 on: December 29, 2015, 10:04:05 am » |
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Dana:
Be aware that most arbors have a left-handed thread on the left side. Logical, if you think about it, but I didn't think and no one told me. I kept tightening the sucker and wondering why it wouldn't come off. Guess you figured out I don't have much mechanical experience! So if I can do it, you certainly can!
Debbie K
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Ranger_Dave
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« Reply #4 on: December 29, 2015, 12:23:04 pm » |
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I learned my lesson the hard way; no pounding. Don't use a metal hammer on any of the parts.
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finegemdesigns
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« Reply #5 on: December 29, 2015, 01:24:57 pm » |
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I used to do work on my van years ago and the only way I could get bearings out was to use a bearing/bushing puller. This is a claw looking tool that allows you to force out bushings or bearings slowly and evenly. As mentioned above if there is a snap ring you will need a pair of special snap-ring pliers to get this off.
Beyond that I would say take your assembly to a machine shop.
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Debbie K
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« Reply #6 on: December 29, 2015, 05:01:59 pm » |
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The wise a$$es that do all the repairs on the grinders at my local gem and mineral club told me AFTER I had taken mine apart and put it back together that if Liquid Wrench doesn't loosen it in a few days, try heating it up with a propane torch. Wish they had told me sooner. I was using a block of wood with a mallet; working my way around the arbor. It took about a week for the Liquid Wrench and tentative tapping to get mine to break loose. That was on the 50 or more year old grinder; the Lortone was WAY easier.
Debbie K
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Ranger_Dave
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« Reply #7 on: December 29, 2015, 05:41:51 pm » |
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The wise a$$es that do all the repairs on the grinders at my local gem and mineral club told me AFTER I had taken mine apart and put it back together that if Liquid Wrench doesn't loosen it in a few days, try heating it up with a propane torch. Wish they had told me sooner. I was using a block of wood with a mallet; working my way around the arbor. It took about a week for the Liquid Wrench and tentative tapping to get mine to break loose. That was on the 50 or more year old grinder; the Lortone was WAY easier.
Debbie K
Brute force doesn't work on machines like these. I've learned that lesson many times.  |
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bobby1
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« Reply #8 on: December 29, 2015, 08:43:18 pm » |
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The best penetrating fluid is PB Blaster, found at most auto parts suppliers.
Bob
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