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Post by Jugglerguy on Nov 28, 2014 15:59:22 GMT -5
I've been slowly working on refurbishing a Lortone cabber. I've been super busy since school started, so I haven't been an a big hurry, but I'd like to get it done for Christmas break. I'm still looking for a used motor, but I'll probably just buy a new one next week. I'm attempting to put the seals back in where the shaft enters the box with the pulley. The original ones wouldn't fit tight, so I bought new ones from Lortone, thinking that the old ones might be dried up and on as flexible. The new ones don't fit any better though. I've tried installing the bearings first and the the seals. Then I tried the seals first, but when I tightened the nuts, the bearings pushed the seals out. Should I leave them the way they are, or should I try cutting a little off the back so they fit flush?
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jamesp
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Member since October 2012
Posts: 36,154
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Post by jamesp on Nov 28, 2014 19:47:20 GMT -5
Those look like slingers Rob. They look backward. If it were reversed it should fit flush. I think the water hits them and gets slung away by the angle of the rubber(when reversed from the way you have them mounted). I may be wrong though. slinger:
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Post by Jugglerguy on Nov 29, 2014 11:17:56 GMT -5
I thought you might be right James, I hadn't even thought about possibly putting them in backwards. I didn't take enough picture before disassembling it. After looking at it, it seems that having the flared out part on the wet side made more sense to deflect the water. Chuck has a similar machine, so I sent him a message and he confirmed that I have them in correctly. He's going to take a closer look when he gets home from work.
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jamesp
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Member since October 2012
Posts: 36,154
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Post by jamesp on Nov 29, 2014 12:55:43 GMT -5
I thought you might be right James, I hadn't even thought about possibly putting them in backwards. I didn't take enough picture before disassembling it. After looking at it, it seems that having the flared out part on the wet side made more sense to deflect the water. Chuck has a similar machine, so I sent him a message and he confirmed that I have them in correctly. He's going to take a closer look when he gets home from work. Pretty certain they are angled slingers. Seals have a round structure around them with carefully a adjusted spring to apply slight pressure so as not to burn up. So they spin with the shaft, and not fixed to the container. Real nice rebuild.
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Post by Jugglerguy on Nov 29, 2014 13:47:01 GMT -5
Chuck just sent me a picture verifying that I installed them correctly. Lortone first sent me the wrong part, which they told me is what they currently use in their stainless arbors. Then they sent me the correct part. I should mention that they didn't charge me for the parts either time. I wonder if the new part is used as an angle slinger. The box calls them oil seals. I can get it to fit tight on the shaft: Would I just shove it up against the side like this? I don't know how I'd get part of the seal to go through the hole, and it seems like it would wear quickly if I did.
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Post by Drummond Island Rocks on Nov 29, 2014 14:37:06 GMT -5
seems like that should get pushed through so that the sheet metal is sandwiched between the two rubber flanges. I do not see a wear issue. The seal should not ever spin.
Chuck
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Post by Jugglerguy on Nov 29, 2014 14:40:51 GMT -5
Chuck, the seal like the one you have doesn't spin, but If I used the other kind, it would have to spin. It's soft rubber and fits tight on the shaft.
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Post by Drummond Island Rocks on Nov 29, 2014 17:00:55 GMT -5
Rob, I am confused by what Lortone is saying now. So are you saying this would be an "old" style seal that gets pushed through and is stationary And this is the "new" style that spins with the shaft and just snugs up to the sheet metal It does seem like the second method would wear out if the rubber is spinning against the hole in the sheet metal. Chuck
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Post by Jugglerguy on Nov 29, 2014 17:08:02 GMT -5
I don't know how the new one is used. The woman I talked to on the phone just told me that the reason they sent the wrong part was that they were using this part on new arbors. At first I thought that the new shafts were smaller, but now I don't know. I think I'll send them an email with my pictures and ask what's up.
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jamesp
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Post by jamesp on Nov 30, 2014 4:59:50 GMT -5
Talk to Doug @ Lortone. I think he is in charge of equipment.
If that seal fits snug on the shaft then it best spin with the shaft. Seems it would melt if it did not spin w/the shaft.
Maybe the seal is installed in the sheet metal first so the saddle straddles the sheet metal, then the shaft is slid into the seal.
But if the seal fits tight straddling the sheet metal then that should cause melting. hmmm
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Post by Jugglerguy on Dec 8, 2014 15:07:22 GMT -5
James, you were right on a couple things. That one seal needed to be reversed. Although I'm almost positive it was not reversed when I took it apart. The other good advice was to talk to Doug. I've been really impressed with Lortone. The woman who answered the phone was really friendly and nice. They sent the wrong part, but it turns out that it was a new, improved part. Then they sent the correct part. They never charged me for either part. They weren't expensive, but someone had to pack them and ship them. Then I got the following really helpful response from Doug: So it looks like I'll use the new type of seal and push it up against the metal. It's really nice to deal with a company that cares about their customers. I'll continue to buy Lortone products.
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jamesp
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Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 8, 2014 15:25:22 GMT -5
James, you were right on a couple things. That one seal needed to be reversed. Although I'm almost positive it was not reversed when I took it apart. The other good advice was to talk to Doug. I've been really impressed with Lortone. The woman who answered the phone was really friendly and nice. They sent the wrong part, but it turns out that it was a new, improved part. Then they sent the correct part. They never charged me for either part. They weren't expensive, but someone had to pack them and ship them. Then I got the following really helpful response from Doug: So it looks like I'll use the new type of seal and push it up against the metal. It's really nice to deal with a company that cares about their customers. I'll continue to buy Lortone products. Glad it worked out for you Rob. Your computer advise, my mechanical, great trade. Reveal in finder- that saved me.
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