ivan
starting to spend too much on rocks
Member since March 2014
Posts: 165 
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Post by ivan on Oct 18, 2017 22:10:45 GMT -5
Can anyone describe the procedures they used to replace the Arbor Bearings and/or Arbor on the Lortone Model LST 12? Purchased the Unit in the late 70's or 80's. All indications sound like the bearings need to be replaced.
Would like to know what bearings that are recommended & where to purchase these components? Is is necessary to replace the Arbor & Arbor Bearings together? What disassembly steps to take to remove & reinstall bearings & arbor? Hope this helps as I haven't gotten into any disassembling as yet. Any assistance & all instruction, suggestions & direction would be very much appreciated. Thank you for taking the time to assist this SC with this matter. Ivan USAF 62-66
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,640
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Post by QuailRiver on Oct 18, 2017 23:40:47 GMT -5
I'll attach a scanned image of Lortone's instructions for replacing an arbor and aligning the blade. The same steps are necessary when just changing bearings. You might not be able to tell if you need to replace the arbor until you remove it from the saw. If there are ruts worn into the arbor shaft were the bearings made contact then you'll need to replace the arbor. If there are no ruts then you won't likely need to replace the arbor. The bearings that Lortone now uses on their 12" & 14" saws(unless they've changed brands in the last couple of years) are the JIB brand bearings. I believe JIB's model number UC204-12 bearings are the ones used on Lortone's 12" saw. You can buy them from Lortone, or on ebay, or just do a google search for "JIB UC204-12 bearings" which will pull up multiple suppliers.  Larry C. |
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ivan
starting to spend too much on rocks
Member since March 2014
Posts: 165
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Post by ivan on Oct 19, 2017 11:18:54 GMT -5
Thank you for taking the time to research and locate this information for me. These posted instructions are just what I needed. Will try to post updates when I am able to proceed. Thanks again! IV
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,640
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Post by QuailRiver on Oct 19, 2017 11:49:35 GMT -5
Thank you for taking the time to research and locate this information for me. These posted instructions are just what I needed. Will try to post updates when I am able to proceed. Thanks again! IV No problem in doing so. Already had the instructions scanned and in my photo files from where others have asked in the past and had a JIB UC204-12 bearing sitting on my desk in front of me. Larry C. |
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ivan
starting to spend too much on rocks
Member since March 2014
Posts: 165
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Post by ivan on Oct 19, 2017 12:50:58 GMT -5
If you or others don't mind me asking? But I'm more than willing to do all my shopping and buying from Our Forum Family when it comes to purchasing supplies and/or equipment. I just not familiar with which of our members that resell or deal with Lapidary equipment or Parts, etc? Probably a listing somewhere on the Forum that can direct me?
With that said ... would I be able to purchase the needed parts from you. Just a thought? Thanks .... Ivan
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ivan
starting to spend too much on rocks
Member since March 2014
Posts: 165
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Post by ivan on Oct 22, 2017 21:41:02 GMT -5
Just got the shield removed and The bearings Are pillowblock bearings. Not sure if all Lortone bearings are installed the same but these bearings came with a bearing stop on the arbor shaft, one on the right of the rear bearing and one on the left of the front bearing that the bearing is press up against. Looks like the new bearings will press up against this stop to help provide the spacing for the proper blade alignment. Just a thought? Anybody feel free to correct me if I'm mistakened! As this is the first time I've worked on the unit. Thank you! IV
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lind
off to a rocking start
Member since August 2018
Posts: 1
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Post by lind on Aug 19, 2018 14:28:48 GMT -5
How can I access the info regarding bearing info on the LST-12 lortone?
I recently aquired one ofthese older saws (green color).
I'm a complete beginner using a saw and trying to learn as much as I can.
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Aug 19, 2018 17:00:04 GMT -5
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,640
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Post by QuailRiver on Aug 19, 2018 19:01:21 GMT -5
When you receive those please let us know if the holes for the mounting bolts are spaced the same as the ones Lortone uses? Larry C. |
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Aug 19, 2018 20:24:25 GMT -5
I got them & they're installed.
Perfect match to the mounting holes. Lortone was smart & used standard bearings.
Lynn
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