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Post by Jugglerguy on Aug 19, 2016 15:13:49 GMT -5
I got it all cleaned up now. The old board was covered in mouse poop and stunk so I remounted it on a new piece of plywood, replaced all the nuts and bolts with stainless, and rewired it. It looks great. Thanks to those who helped me with the wiring. Before:  After:  There's a possible problem though. When I wired the motor, I turned it on and it was almost silent. Now that it's hooked up to the saw, it's very loud. I noticed that the pulley on the motor appears to be steel rather than aluminum and is slightly bent and wobbles a bit when turned by hand. That might be part of the problem. I'm concerned that its the bearings in the saw though. I have never replaced bearings in anything, and I'm not sure if I can get bearings for this old saw. If I can, I don't know where. I haven't removed the bolts around the bearings yet because I'm not sure what to expect when I get inside. Can anyone give me any advice? Drummond Island Rocks , do you have any experience with GemLap bearings?   |
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Post by captbob on Aug 19, 2016 15:23:56 GMT -5
Well that sure cleaned up nicely! That board sealed? New wiring looks nice. New plexi too?
Heck of a lot easier than the saw clean up I'm in the middle of I'm thinkin'!
(on break now due to lightning nearby)
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Post by Jugglerguy on Aug 19, 2016 15:27:04 GMT -5
Yep, the board was the most time consuming part of the project. It has three coats of outdoor spar polyurethane. The plexiglas on it was broken so I replaced it with a piece of Lexan that I bent to what I think will work well.
Good luck on your project. How's it coming along?
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Post by captbob on Aug 19, 2016 15:37:11 GMT -5
Slow but sure on the 24". Finding other things that need attention, so the saw is a "when I find time" project. It's not going anywhere, so no rush.
Thinking about stripping it all the way down and sending the tank off to my auto body paint shop. This thing is really in good shape other than the paint. Which is actually good enough, but I'm kinda picky. (ya don't say!)
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Post by mohs on Aug 19, 2016 15:45:03 GMT -5
That re-conditioned really fine
that's part of getting good deals
you have increased the price of machine considerably
and with all the work you'll manage from it
it was labor well spent and a learning experience
boy the end of that cabber looks really clean
you sure you work with rock ?
ha ha
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Post by orrum on Aug 19, 2016 15:47:27 GMT -5
Nice job Rob! Try a link belt from Harbor Freight, they run very quiet. Don't have the belt too tight, it will prematurely wear your bearings out.
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inbtb
Cave Dweller 
Member since May 2016
Posts: 351 
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Post by inbtb on Aug 19, 2016 17:21:45 GMT -5
Looks good all cleaned up.
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Post by Drummond Island Rocks on Aug 19, 2016 18:29:14 GMT -5
Nice work Rob. I have never had a bad bearing on any of my gemlap saws or grinders. With the belt off is there any play at all in the arbor? Did it spin nice and smooth by hand before you put the belt on?
Chuck
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Post by greig on Aug 19, 2016 18:56:20 GMT -5
I know nothing about these machines, but am a tinkerer from way back where my Dad always bought used, expected me or us to fix it and I have kept up the tradition. From the description, here are my thoughts for what they are worth: The motor ran silent, so that is not likely the problem. When you are running with a belt, it should not matter the type of metal the pulley is made from. As long as the belt is not too tight, I would not worry much about a minor wobble on the motor as belts can tolerate quite a bit. I would remove the belt and turn the saw by hand to listen for noise and also see if it is loose when you push and pull on the saw pulley - it should be solid (no movement) and if it is not, then that is the problem and you will have to take it apart. However, if I were to "armchair quarterback" the issue - - the bearings are probably not they type that are sealed and there is probably dirt (grit, spiders, rust, etc) in there. To fix that, you will want to clean it out and repack with new grease. It is a pretty easy job once you get it apart. For sure, do NOT spray the bearings with WD40 and then run the machine.
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Post by Jugglerguy on Aug 19, 2016 19:23:00 GMT -5
I thought it was the pulley on the motor that was bent, but it's the pulley on the saw. I really don't think that's the problem though. There doesn't seem to be any play in the arbor.
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Post by Drummond Island Rocks on Aug 19, 2016 20:52:24 GMT -5
Saw sure seems fine to me. Rotates with ease and you said no play in the arbor. Belt could be a little tight. Loosening that would be a simple thing to try anyway. I have had at least a dozen gemlap items pass through my hands and never seen a bad bearing yet. They do not take grease they are a sealed bearing that has a very good cover that keeps water, oil and sludge out.
I have had a motor before that sounded great with no load and then it was loud as soon as I put it on a machine with a belt and under a load.
Chuck
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Post by Jugglerguy on Aug 19, 2016 21:14:19 GMT -5
I just went and spun my other GemLap that has no motor attached and it is much quieter. I was going to try to grease the bearings as greig suggested. So you're saying that they can't be greased? Any idea what I would find if I took it apart? |
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Post by Drummond Island Rocks on Aug 19, 2016 21:31:52 GMT -5
I just went and spun my other GemLap that has no motor attached and it is much quieter. I was going to try to grease the bearings as greig suggested. So you're saying that they can't be greased? Any idea what I would find if I took it apart? Never had the need to take one apart so please take some pictures and notes if you go that route. I was told it is a sealed bearing which makes sense because they do not make them easy to get to. Chuck |
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spiritstone
Cave Dweller
Member since August 2014
Posts: 2,061
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Post by spiritstone on Aug 19, 2016 21:50:56 GMT -5
Do you have any spray on grease? I do see bearings in the one pic showing. You can give it a try to see if that is the cause of the noise problem or not, just a suggestion.
3-in-1 Professional White Lithium Grease features a water and heat-resistant formulation provides you with a long-lasting, heavy-duty lubricant
Sprays on evenly as a liquid, and sets up dry for a thick coating - will not splatter, melt, run, wash-off or freeze
Automotive use: Hinges, locks, latches, seat tracks, strike plates, cables, distributor cams, battery terminals, radio antennas, windshield wiper mechanisms, bolts, bearings and more
Home use: Sliding doors, windows, hinges, appliances, lawn and garden equipment, garage door tracks, chains, screws, guns and tools
Marine use: Trailer rollers, winches, turnbuckles, shackles, bearings, slides, motor pivot points and all external moving parts
Shop use: Machinery, fans, blowers, roller channels, chains, conveyor, bearing, gears, pneumatic tools, blades and bits
Edit: sorry, its sealed after brightening the picture, no can do.
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Post by Jugglerguy on Aug 19, 2016 21:58:09 GMT -5
Do you have any spray on grease? I do see bearings in the one pic showing. You can give it a try to see if that is the cause of the noise problem or not, just a suggestion. 3-in-1 Professional White Lithium Grease features a water and heat-resistant formulation provides you with a long-lasting, heavy-duty lubricant Sprays on evenly as a liquid, and sets up dry for a thick coating - will not splatter, melt, run, wash-off or freeze Automotive use: Hinges, locks, latches, seat tracks, strike plates, cables, distributor cams, battery terminals, radio antennas, windshield wiper mechanisms, bolts, bearings and more Home use: Sliding doors, windows, hinges, appliances, lawn and garden equipment, garage door tracks, chains, screws, guns and tools Marine use: Trailer rollers, winches, turnbuckles, shackles, bearings, slides, motor pivot points and all external moving parts Shop use: Machinery, fans, blowers, roller channels, chains, conveyor, bearing, gears, pneumatic tools, blades and bits I can sure go get some spray on grease. Where do you see bearings? Should I spray from the inside or the outside? |
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spiritstone
Cave Dweller
Member since August 2014
Posts: 2,061
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Post by spiritstone on Aug 19, 2016 21:59:49 GMT -5
Do you have any spray on grease? I do see bearings in the one pic showing. You can give it a try to see if that is the cause of the noise problem or not, just a suggestion. 3-in-1 Professional White Lithium Grease features a water and heat-resistant formulation provides you with a long-lasting, heavy-duty lubricant Sprays on evenly as a liquid, and sets up dry for a thick coating - will not splatter, melt, run, wash-off or freeze Automotive use: Hinges, locks, latches, seat tracks, strike plates, cables, distributor cams, battery terminals, radio antennas, windshield wiper mechanisms, bolts, bearings and more Home use: Sliding doors, windows, hinges, appliances, lawn and garden equipment, garage door tracks, chains, screws, guns and tools Marine use: Trailer rollers, winches, turnbuckles, shackles, bearings, slides, motor pivot points and all external moving parts Shop use: Machinery, fans, blowers, roller channels, chains, conveyor, bearing, gears, pneumatic tools, blades and bits I can sure go get some spray on grease. Where do you see bearings? Should I spray from the inside or the outside? Sorry, its sealed after brightening the pic, no can do. |
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spiritstone
Cave Dweller
Member since August 2014
Posts: 2,061
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Post by spiritstone on Aug 19, 2016 22:04:31 GMT -5
I can sure go get some spray on grease. Where do you see bearings? Should I spray from the inside or the outside? Sorry, its sealed after brightening the pic, no can do. Is it possible to add in a zerk nipple to the shaft? I should say I'm guessing dry bearings. I can spin my saw shaft by hand and its silent, yours I can hear the bearings when you spin it by hand. |
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Post by Jugglerguy on Aug 19, 2016 22:17:19 GMT -5
Sorry, its sealed after brightening the pic, no can do. Is it possible to add in a zerk nipple to the shaft? If it was possible, it would be way beyond my abilities. |
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Post by captbob on Aug 19, 2016 22:37:04 GMT -5
If you remove the blade, can that silver cap next to the blade come off that end of the arbor? |
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spiritstone
Cave Dweller
Member since August 2014
Posts: 2,061
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Post by spiritstone on Aug 19, 2016 22:38:21 GMT -5
Is it possible to add in a zerk nipple to the shaft? If it was possible, it would be way beyond my abilities. I dont blame you if your unsure, I'm unsure if its the bearings or not.  Just trying to help troubleshoot your noise. Maybe thats normal? with this saw. You did a fine job cleaning it up. |
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Just trying to help troubleshoot your noise. Maybe thats normal? with this saw. 
