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Post by gmitch067 on Apr 4, 2018 10:22:57 GMT -5
Sounds like you got a good unit jamesp . Mine vibrates the 63 lb block so aggressively that you can feel it through your shoes standing 3 feet away! The noise is easily heard inside the house through the garage door. Yesterday I started a 220 SiC run on a fresh batch of Bots during the time my daughter was out with her car. Two hours later I went to check the grind and found my Lot-O about 3 feet toward the center of the garage pulling the power cord taut - on it's way to pulling the plug out of the socket! Good thing I decided to place it on the floor instead of the bench! (While pushing it back into place I noted a 2-inch section of the power cable was stripped down to bare copper braid... a bit of electrical tape corrected that) Checked it again last night... the paving stones I placed around it seem to be adequate in keeping it in place. Tomorrow after clean-out, I will check/adjust the placements of weights. If those look good, like toiv0 , I will remove the unit from the press-board base to check the springs. It is a new unit, but I will try to fix it myself rather than go through the hassle of sending it back (also because I added Gorilla double-back tape to the bottom to increase the bond to the cement paving blocks - too hard to get off now). Glenn Sorry... I just realized that I hijacked your thread toiv0... not good of me. Sorry again+++
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Post by Jugglerguy on Apr 4, 2018 10:45:03 GMT -5
Something is definitely wrong if it’s moving the concrete block. Mine doesn’t move the block at all and is fairly quiet. I can just barely hear it upstairs from where it sits in the basement. It just makes a steady humming noise.
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saxplayer
fully equipped rock polisher
Member since March 2018
Posts: 1,327
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Post by saxplayer on Apr 4, 2018 16:10:10 GMT -5
Sounds like you got a good unit jamesp . Mine vibrates the 63 lb block so aggressively that you can feel it through your shoes standing 3 feet away! The noise is easily heard inside the house through the garage door. Yesterday I started a 220 SiC run on a fresh batch of Bots during the time my daughter was out with her car. Two hours later I went to check the grind and found my Lot-O about 3 feet toward the center of the garage pulling the power cord taut - on it's way to pulling the plug out of the socket! Good thing I decided to place it on the floor instead of the bench! (While pushing it back into place I noted a 2-inch section of the power cable was stripped down to bare copper braid... a bit of electrical tape corrected that) Checked it again last night... the paving stones I placed around it seem to be adequate in keeping it in place. Tomorrow after clean-out, I will check/adjust the placements of weights. If those look good, like toiv0 , I will remove the unit from the press-board base to check the springs. It is a new unit, but I will try to fix it myself rather than go through the hassle of sending it back (also because I added Gorilla double-back tape to the bottom to increase the bond to the cement paving blocks - too hard to get off now). Glenn Sorry... I just realized that I hijacked your thread toiv0... not good of me. Sorry again+++ Why hastle with it? it's obviously not working as intended - I'd get a replacement if that is in fact a new one. Who knows what else is "off". Makes me nervous before using mine as I just got mine too. Gonna be a few weeks before I need it. I have a 60lb cement block waiting to install to, I'd expect that to be plenty to prevent any movement.
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Post by toiv0 on Apr 4, 2018 16:58:40 GMT -5
Sounds like you got a good unit jamesp . Mine vibrates the 63 lb block so aggressively that you can feel it through your shoes standing 3 feet away! The noise is easily heard inside the house through the garage door. Yesterday I started a 220 SiC run on a fresh batch of Bots during the time my daughter was out with her car. Two hours later I went to check the grind and found my Lot-O about 3 feet toward the center of the garage pulling the power cord taut - on it's way to pulling the plug out of the socket! Good thing I decided to place it on the floor instead of the bench! (While pushing it back into place I noted a 2-inch section of the power cable was stripped down to bare copper braid... a bit of electrical tape corrected that) Checked it again last night... the paving stones I placed around it seem to be adequate in keeping it in place. Tomorrow after clean-out, I will check/adjust the placements of weights. If those look good, like toiv0 , I will remove the unit from the press-board base to check the springs. It is a new unit, but I will try to fix it myself rather than go through the hassle of sending it back (also because I added Gorilla double-back tape to the bottom to increase the bond to the cement paving blocks - too hard to get off now). Glenn Sorry... I just realized that I hijacked your thread toiv0... not good of me. Sorry again+++ I like when threads wander a little, everyone learn something. Besides you're right on subject. No problems.
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Post by gmitch067 on Apr 4, 2018 18:09:06 GMT -5
I kinda would like to send it back... BUT... I did get a knock-out shine on my first batch of Bots, and the motion is a good smooth roll - the speed of which pretty much matches that I see in the YouTube vid. The noise is horrendous!!! My Lot-O with it's lid ON is louder than my UV-18 when I have it's lid OFF! I checked the fan weights as ingawh suggests and found them in-line with each other... I can easily adjust them (in itself a little alarming...). Minor adjustments either way do not change the noise level. Vibrations are so heavy that without a few paving stones (~20 lbs) resting along side the 63 lb block, it will run all over the garage floor (it gets it's "CREEP ON") I will wait till tomorrow when my second batch of Bots are through with their 220-grit run to disassemble the unit to check the springs. In place, I do not feel any breaks when feeling along their sides. As toiv0 and ingawh said, broken springs are not easy to see unless you take it apart... we'll see. If I did send it back, I would have to separate the unit from the press-board base... which I'm not sure I can do (after laying down strips of Gorilla double sided tape between those the unit came with... might as just have welded it!). I hope the cost of replacement springs isn't too much... Glenn
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Post by toiv0 on Apr 4, 2018 18:13:28 GMT -5
I kinda would like to send it back... BUT... I did get a knock-out shine on my first batch of Bots, and the motion is a good smooth roll - the speed of which pretty much matches that I see in the YouTube vid. The noise is horrendous!!! My Lot-O with it's lid ON is louder than my UV-18 when I have it's lid OFF! I checked the fan weights as ingawh suggests and found them in-line with each other... I can easily adjust them (in itself a little alarming...). Minor adjustments either way do not change the noise level. Vibrations are so heavy that without a few paving stones (~20 lbs) resting along side the 63 lb block, it will run all over the garage floor (it gets it's "CREEP ON") I will wait till tomorrow when my second batch of Bots are through with their 220-grit run to disassemble the unit to check the springs. In place, I do not feel any breaks when feeling along their sides. As toiv0 and ingawh said, broken springs are not easy to see unless you take it apart... we'll see. If I did send it back, I would have to separate the unit from the press-board base... which I'm not sure I can do (after laying down strips of Gorilla double sided tape between those the unit came with... might as just have welded it!). I hope the cost of replacement springs isn't too much... Glenn Springs were 9.50 from Rock Shed, bought a second barrel also.
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Post by gmitch067 on Apr 4, 2018 18:17:01 GMT -5
Great! That is doable. Thank you!
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saxplayer
fully equipped rock polisher
Member since March 2018
Posts: 1,327
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Post by saxplayer on Apr 4, 2018 20:47:50 GMT -5
Well, I hope your fix is easy and cheap =)
If mine moves all around when I start it up initially, it's probably gonna go back based on videos I've seen of multiple others on this forum.
Hoping you figure it out soon!
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Post by orrum on Apr 5, 2018 8:40:11 GMT -5
Yes James, knob shouldnt touch.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,208
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Post by jamesp on Apr 5, 2018 9:41:51 GMT -5
Yes James, knob shouldnt touch. Thanks Bill. It makes sense but when it comes to vibratory equipment who knows.
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Post by gmitch067 on Apr 5, 2018 17:10:28 GMT -5
I am in the same boat as you toiv0... I had a broken double leaf spring on the Lot-O motor side of the mount (only one leaf broke... I noted rust coating 3/4 of the face of the break so it must have happened awhile back). The Rock Shed is sending replacement springs to repair. Hopefully this will work out. Glenn
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Post by MrP on Apr 5, 2018 17:28:33 GMT -5
I have had the bearing end cap loosen and have had to tack weld it to the main housing. It gets very loud when that happens.....................MrP
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Post by toiv0 on Apr 5, 2018 18:06:33 GMT -5
I have had the bearing end cap loosen and have had to tack weld it to the main housing. It gets very loud when that happens.....................MrP think that little motor has bearings or bushings? Gotta be careful welding around bearings, if current goes through them and arks it will ruin them. Seen it happen at work when they put the ground on a shaft. I also had a wheel bearing go out on an old Saab when the enginge ground broke off and it found ground though it.
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Post by toiv0 on Apr 5, 2018 18:33:06 GMT -5
Not supposed to, correct Bill ? I better start raising the hopper then. well I raised mine up and the barrel must be getting soft, it just slid slowly down until it hit the frame. Might try an inner tube to shim it up when my parts come in.
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Post by MrP on Apr 5, 2018 20:32:14 GMT -5
toiv0 mine has bearings. I know this because I have had to change them and that is part of the reason the end came lose. The end is held in place by bending tabs from the main motor body over the end plate. After I bent them back I could not get them as tight as they were to start with. It ran over a year before it became a problem. Now that I am thinking about it I had to take it apart again because the weld broke on one of the studs. To weld I clamped a vice grip to the motor body and placed the ground on that. gmitch067 that is something to check. Maybe you have a loose nut or a broken stud that holds the motor on. If a stud breaks loose it gets loud. I had to tack weld two studs on mine. I can't complain because it has only run 24/7/365 for 8-10 years. I also want to say that I have two of about the same vintage and the both act a little different. Both shine well but just a little different. The one works better with the block setting on 3 firm yellow kitchen sponges. The bowl on one of mine setts on the nub because the barrel has been squeezed in after it has run for so many years. Seems to work just fine. Good Luck.....................................MrP
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Post by grumpybill on Apr 5, 2018 20:45:32 GMT -5
well I raised mine up and the barrel must be getting soft, it just slid slowly down until it hit the frame. Might try an inner tube to shim it up when my parts come in. Maybe putting a clamp across the metal sides and bending them in a bit would work?
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Post by toiv0 on Apr 7, 2018 8:44:26 GMT -5
Well got the springs and replaced them, Hums like I think it should with nice action. Didn't really like the odd size tiny bolts and different sized, maybe the new ones are different. Like jamesp said it doesn't roll near as fast as the vibrasonic. You can adjust it with the dowel, mine has to be closer than the 1 11/16 maybe 1 1/2. I noticed my frame wasn't square anymore and did a little hammering. I also seen how it worked. 4 springs on the heavy side with the adjustment. 2 light side. The light side has more movement or spring throwing the rocks forward with the vibration. We use the same principle on vibratory screens. You can actually throw the materials backwards to get max screen contact with the material.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,208
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Post by jamesp on Apr 7, 2018 10:42:52 GMT -5
Well got the springs and replaced them, Hums like I think it should with nice action. Didn't really like the odd size tiny bolts and different sized, maybe the new ones are different. Like jamesp said it doesn't roll near as fast as the vibrasonic. You can adjust it with the dowel, mine has to be closer than the 1 11/16 maybe 1 1/2. I noticed my frame wasn't square anymore and did a little hammering. I also seen how it worked. 4 springs on the heavy side with the adjustment. 2 light side. The light side has more movement or spring throwing the rocks forward with the vibration. We use the same principle on vibratory screens. You can actually throw the materials backwards to get max screen contact with the material. Left my Lot-o springs as found from factory Billy.
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Post by gmitch067 on Apr 7, 2018 21:19:27 GMT -5
toiv0 mine has bearings. I know this because I have had to change them and that is part of the reason the end came lose. The end is held in place by bending tabs from the main motor body over the end plate. After I bent them back I could not get them as tight as they were to start with. It ran over a year before it became a problem. Now that I am thinking about it I had to take it apart again because the weld broke on one of the studs. To weld I clamped a vice grip to the motor body and placed the ground on that. gmitch067 that is something to check. Maybe you have a loose nut or a broken stud that holds the motor on. If a stud breaks loose it gets loud. I had to tack weld two studs on mine. I can't complain because it has only run 24/7/365 for 8-10 years. I also want to say that I have two of about the same vintage and the both act a little different. Both shine well but just a little different. The one works better with the block setting on 3 firm yellow kitchen sponges. The bowl on one of mine setts on the nub because the barrel has been squeezed in after it has run for so many years. Seems to work just fine. Good Luck.....................................MrP I should get new springs by Monday from The Rock Shed... Thank you in advance! Because "What I Touch - I Must Break"... I succeeded in breaking the shaft of one of the mount screws holding the leaf spring to the red metal housing as I checked for tightness... had to go to ACE Hardware to find new stainless steel screws and capture nuts (because I have great faith in my ability to break things, I got 10 each).... Then I got a new set of small box wrenches... and a different set of small open-end wrenches... and... and... Gosh I hate going to hardware stores!!! My Lot-O motor is a sealed unit with a shaft going through to stick out each side - unsupported by any bushing, and the shaft does not wobble any. The motor itself hangs in grooves on the red frame and is held in place with 4 capture nuts - all feel tight. Both ends of the shaft have weighted squirrel cages (fans) on the shaft toward the ends. One weighted cage was very close to the motor mount nut, so I moved both cages to the very ends of the shaft. This sort of worries me because they are easy to move, and I just don't see what mechanism keeps them from flying off the shaft ends. This should be interesting... I clamped the Lot-O frame (without springs) to my workbench with a C-clamp and turned it ON to see if the fan cages stayed in place... and they did. Though all my tools on the workbench vibrated off the edge to the floor (I had ducked down to safety in case the fans went flying). Glenn
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,208
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Post by jamesp on Apr 8, 2018 6:14:02 GMT -5
gmitch067Beware of turning a vibe on without rocks in the hopper. Running to much weight in a spring loaded vibe is harmless, running it empty can be destructive.
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