textiger
freely admits to licking rocks
Member since May 2005
Posts: 946
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Post by textiger on Oct 17, 2011 13:11:41 GMT -5
I just picked up an old Lortone ST10 at an estate sale. The power feed does not appear to work -- will be checking this weekend to see if it is a problem with the motor or wiring.
Assuming the motor is shot, what would I use to replace it?
Also, does anyone happen to have a manual for this machine? I know that is asking a lot as this thing looks to be about 30 years old, or more. It had about 30 years' worth of sludge inside, too. But the blade turns true.
Can't wait to get slabbing, but any assistance/guidance would be much appreciated.
thanks.
matt
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NDK
Cave Dweller 
Member since January 2009
Posts: 9,440
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Post by NDK on Oct 17, 2011 13:51:23 GMT -5
Nice score Matt. Someone else on here offered a manual for a saw on another thread, and it was also mentioned it would be cool if the mods stickied a thread to post scanned manuals at for anyone to use if needed. I hope someone chimes in and helps you out.
Nate
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Post by jakesrocks on Oct 17, 2011 14:38:49 GMT -5
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Post by tkrueger3 on Oct 17, 2011 22:09:01 GMT -5
Matt, this is what I've been using as a reference for mine: www.lortone.com/pdf/LS10_Instructions.pdfThere's not a lot to it, really - cleaning it involves removing 3 wingnuts in the bottom of the case, and lifting the case off of the oil pan. Beware - this will sling and drip oil on everything within 15 feet! I've found that it cuts the weight about in half if I first remove the motor from the top of it. Easy as pie. I bought one of the Home Depot $20 shop vacs that is just the motor and hose that mounts on top of one of their 5-gallon buckets, and I use that to suck the oil out before I do anything else. Makes it a little less messy, but mostly lets me salvage most of the oil for filtering and reusing. Hope this helps some, Tom |
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textiger
freely admits to licking rocks
Member since May 2005
Posts: 946
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Post by textiger on Oct 18, 2011 12:52:10 GMT -5
Excellent, Tom. Thanks for the link.
Any ideas on replacing the power feed motor, should it come to that?
matt
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juzwuz
has rocks in the head
Member since April 2010
Posts: 526
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Post by juzwuz on Oct 18, 2011 14:12:56 GMT -5
I seem to remember someone finding a possible replacement feed gear motor at www.surpluscenter.comI also thought Lortone has a suitable replacement motor. I have the same saw but never really looked at the feed motor. |
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Post by johnjsgems on Oct 18, 2011 14:45:54 GMT -5
I would go directly to Lortone. You will get the correct motor with correct rotation. Their replacement parts are pretty reasonable.
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Post by deb193redux on Oct 18, 2011 15:26:50 GMT -5
They have the motor, but the shaft diameter has changed over the years. You may have to have to drill out the collar that joins the motor shaft to the thread rod. That's what I had to do for my LS12 after I bought the new Lortone motor.
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Post by rockmanken on Oct 18, 2011 21:09:01 GMT -5
I ALSO HAD TO DRILL OUT THE SHAFT COLLAR TO FIT MY LS-12 TO FIT THE NEW LORTONE MOTOR.
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textiger
freely admits to licking rocks
Member since May 2005
Posts: 946
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Post by textiger on Oct 22, 2011 23:26:17 GMT -5
OK, right now, looks to be a wiring problem. Which got worse when the power switch broke. I can manage that one.
My new question is this: The power feed motor looks like the same motor in my 33B tumbler. Is it the same motor? According to Lortone's parts list they have different numbers, but they look pretty darn similar. It also turns the feed screw really slow. I assume that is the way it is supposed to -- Lortone parts list says 4 rpm. Still, looks almost glacial.
I'd welcome anybody's guidance on this.
Thanks,
matt
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Post by Rockoonz on Oct 23, 2011 0:55:56 GMT -5
The motors are similar in design but not the same at all. The gearmotors used for feed motors have to be replaced as a unit unless you can figure out how to repair it, mating a tumbler motor to the gearset on the gearmotor won't work, different output shaft.
Lee
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Post by catmandewe on Oct 23, 2011 1:21:38 GMT -5
The gear motor usually breaks one of the leads that wraps around the coils, just solder the broke lead back together, retape the coil, spray it down with some 12/34, and you should be back in business. That has fixed all but one of my gear motors.
I have also used rotisserie motors as a replacment motor, but most of them run at 5 rpm which speeds up your feed a little.
Good luck with it..............Tony
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textiger
freely admits to licking rocks
Member since May 2005
Posts: 946
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Post by textiger on Oct 24, 2011 12:21:10 GMT -5
Good information, fellows. Thanks for your help.
matt
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elcon
off to a rocking start
Member since June 2020
Posts: 1 
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Post by elcon on Jun 29, 2020 18:10:07 GMT -5
I got an ST 10 that seems to work quite well except the power feed was ignored because the tension spring is missing. I wrote Lortone but it seems they are in shop randomly. Can anyone tell me the specs I should use for a new spring please?
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Post by stonemon on Jun 29, 2020 19:35:09 GMT -5
Welcome to the forum elcon! |
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Tommy
Administrator 
Member since January 2013
Posts: 12,989
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Post by Tommy on Jun 30, 2020 9:36:41 GMT -5
I got an ST 10 that seems to work quite well except the power feed was ignored because the tension spring is missing. I wrote Lortone but it seems they are in shop randomly. Can anyone tell me the specs I should use for a new spring please? Welcome elcon - maybe start a new thread so your question isn't buried in this old thread and it will get more attention. |
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Post by manofglass on Jun 30, 2020 9:54:56 GMT -5
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,640
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Post by RWA3006 on Jun 30, 2020 20:53:35 GMT -5
manofglass Thanks Walt. I just acquired one of these old saws and this manual will come in handy.
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garock
fully equipped rock polisher
Member since February 2006
Posts: 1,168
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Post by garock on Jul 12, 2020 15:40:01 GMT -5
catmandewe, I had wires to break on my feed motor too ! Being 29, I mean 70 years old I might have lost my touch soldering. I was an electronics tech for many years. I did not have a problem soldering it back but got worried about the wiring breaking again. I took a hot glue gun and melted the wiring in place. "Hopefully" I will not have this problem again.
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