jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Aug 8, 2017 19:35:44 GMT -5
Lots of o-ring belts in tumblers. The polyurethane drive o-ring belts dance to a different drummer, tough buggars. everything about the Gy Roc makes sense. I think it more tumblers used good belts , customer complaints and bad press would drop off a lot . Not trying to push Gy Roc on anyone but it just works . Had a little learning curve but I don't think more than any other vibe . I was thinking about the Thumbler thread regarding the belts. Weren't they breaking ? May have been flat belts. With advent of robotics, round belts have become real popular. Once you dial in on the vibes or the rotaries for that matter they become repetitive.
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Post by wigglinrocks on Aug 8, 2017 19:45:16 GMT -5
I think it more tumblers used good belts , customer complaints and bad press would drop off a lot . Not trying to push Gy Roc on anyone but it just works . Had a little learning curve but I don't think more than any other vibe . I was thinking about the Thumbler thread regarding the belts. Weren't they breaking ? May have been flat belts. With advent of robotics, round belts have become real popular. Once you dial in on the vibes or the rotaries for that matter they become repetitive. Not sure about the thumler thread , I sometimes skip over them . But I do think the smaller ones use o-ring belts . My Chicago thing has square ring belts and may be the lucky one but haven't replace one of those either . Lot of others have problems with them . QT 66 uses a v-belt . Yeah , when I got the vibe figured out , tumbling got to be fun .
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Aug 8, 2017 19:59:27 GMT -5
The vibe is separate from the rotaries. It is like two different operations. Rotating and vibing. They really don't mix well.
Tumbling is way more pleasant with a vibe in the mix.
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Post by rockpickerforever on Aug 9, 2017 0:15:23 GMT -5
Now I just gotta clean up my act I use Iron Out for cleaning old fossils.. grin. What do you use? Low hanging fruit alert...
Low hanging fruit, huh? Old fossils love to be cleaned with some harsh lye soap, and a stiff bristled wire brush. That'll take the skin right off of them. Or, if they are particular, give them a bubble bath, lol. Something with a little bit of foo foo in it, so they smell nice, too.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Aug 9, 2017 4:32:13 GMT -5
might be a full moon
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Post by rockpickerforever on Aug 9, 2017 6:33:26 GMT -5
The full moon was Monday night.
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lookatthat
Cave Dweller
Whatever there is to be found.
Member since May 2017
Posts: 1,360
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Post by lookatthat on Aug 9, 2017 10:07:07 GMT -5
My Gy-Roc "B" doesn't have a pulley cover, nor a capacitor. The motor does not list the RPMs. It's a Fasco, made in the (now closed) Ozark plant. An OD95 1.1 amp Type 63, #7163-3854 The machine is old enough that the metal stand part is unpainted, if that tells anybody anything. It says to oil every 6 months with SAE 20, but I can't see where to do so. Do I have to remove it to do so? (It does not look difficult to remove.)
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Post by wigglinrocks on Aug 9, 2017 10:25:15 GMT -5
My Gy-Roc "B" doesn't have a pulley cover, nor a capacitor. The motor does not list the RPMs. It's a Fasco, made in the (now closed) Ozark plant. An OD95 1.1 amp Type 63, #7163-3854 The machine is old enough that the metal stand part is unpainted, if that tells anybody anything. It says to oil every 6 months with SAE 20, but I can't see where to do so. Do I have to remove it to do so? (It does not look difficult to remove.) There is an end cap on each end of the motor , about an 1/8 inch hole right next to the ends is where you put oil . Not the bigger square cooling cutouts .
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Post by johnjsgems on Aug 9, 2017 11:14:12 GMT -5
The two groove pulley generally is installed centered to run either speed so is a little out of alignment for either speed. I advise people to align high or low speed (if you will primarily use only high or low) so belts last longer. The counter weights are aligned by aiming bottom weight toward motor (6:00). Then align top weight to either 10:00 or 2:00. The belt guard fits over the motor mount studs (press fit).
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lookatthat
Cave Dweller
Whatever there is to be found.
Member since May 2017
Posts: 1,360
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Post by lookatthat on Aug 9, 2017 11:15:27 GMT -5
I'm never going to remember all this stuff.
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Post by wigglinrocks on Aug 9, 2017 12:12:26 GMT -5
I'm never going to remember all this stuff. Main concern is getting the vibe going , all the info will be on the thread .
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Post by rockpickerforever on Aug 9, 2017 15:04:31 GMT -5
My Gy-Roc "B" doesn't have a pulley cover, nor a capacitor. The motor does not list the RPMs. It's a Fasco, made in the (now closed) Ozark plant. An OD95 1.1 amp Type 63, #7163-3854 The machine is old enough that the metal stand part is unpainted, if that tells anybody anything. It says to oil every 6 months with SAE 20, but I can't see where to do so. Do I have to remove it to do so? (It does not look difficult to remove.)
I can see how the pulley cover became separated from the tumbler over the years. It is just made from flimsy, thin, white plastic. I was afraid I was going to break it when I removed it.
If the stand is metal, I agree, it is most likely an older model. The one I have utilizes grey PVC tube, stamped with "3/4" diameter Schedule 40 Rigid PVC conduit, TC-2 sunlight resistant for aboveground or underground use." Manufacturer name is PW Eagle. It has been bent into the appropriate shape using heat. The tubing on mine is date stamped 03/22/06, so the vibe was manufactured some time after that. I think using PVC is actually better, no metal to rust (when their owner's don't take good care of them).
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lookatthat
Cave Dweller
Whatever there is to be found.
Member since May 2017
Posts: 1,360
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Post by lookatthat on Aug 9, 2017 15:12:36 GMT -5
I always end up with old stuff. I bought a pair of Zeiss binoculars for a few bucks at an auction. After dropping them one too many times, I enquired around about a new part. Not available, I was told, since the factory burned down. Oh, too bad, when was that? They said, World War Two!
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Post by johnjsgems on Aug 9, 2017 18:34:00 GMT -5
Another nice feature with the Gy-Rocs is thr=e belt drive system they use. Most "conventional vibe tumbers mount the motor shaft down and put a weight on the motor shaft to throw motor out of balance. The rest of tumbler is mounted on springs. With the Gy-Roc the motor is rigidly mounted shaft up and belt drives a shaft assembly that has offset counter weights to cause the bowl to be out of balance not the motor. Motors really don't like to be out of balance. Then since they are using pulleys and belt they use a two groove pulley for easy two speed operation. By the way, you have to stretch the belt to get on the high speed and it will not work on the low speed again. That is why they supply two belts with each unit. They used to dye them red and green but stopped that a long time ago. Now they let you figure out the longer belt is for high speed. By the way, I have some of the monstrous C models looking for new homes. Killer prices for forum members only $525 plus shipping.
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Post by wigglinrocks on Aug 9, 2017 19:29:24 GMT -5
Another nice feature with the Gy-Rocs is thr=e belt drive system they use. Most "conventional vibe tumbers mount the motor shaft down and put a weight on the motor shaft to throw motor out of balance. The rest of tumbler is mounted on springs. With the Gy-Roc the motor is rigidly mounted shaft up and belt drives a shaft assembly that has offset counter weights to cause the bowl to be out of balance not the motor. Motors really don't like to be out of balance. Then since they are using pulleys and belt they use a two groove pulley for easy two speed operation. By the way, you have to stretch the belt to get on the high speed and it will not work on the low speed again. That is why they supply two belts with each unit. They used to dye them red and green but stopped that a long time ago. Now they let you figure out the longer belt is for high speed. By the way, I have some of the monstrous C models looking for new homes. Killer prices for forum members only $525 plus shipping. Definitely a good price for a model C , I better get me some more rocks .
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lookatthat
Cave Dweller
Whatever there is to be found.
Member since May 2017
Posts: 1,360
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Post by lookatthat on Aug 10, 2017 21:12:32 GMT -5
It's alive! A little oil and the thing is hopping!
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Post by wigglinrocks on Aug 10, 2017 21:19:09 GMT -5
It's alive! A little oil and the thing is hopping! Great news , will expect some shiny rock pics in a week . Good idea to get a couple new belts in case the ones you have are dried out .
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lookatthat
Cave Dweller
Whatever there is to be found.
Member since May 2017
Posts: 1,360
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Post by lookatthat on Aug 10, 2017 21:24:39 GMT -5
Yeah, need new belts. The old one is stretched out and only works on the fast speed. The spare had never been used but was probably as old as the machine - it broke when I tried to put it on. Want to make many shiny rocks as quickly as possible, but some unfortunate circumstances have arisen that demand my attention.
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Post by wigglinrocks on Aug 10, 2017 21:38:21 GMT -5
Yeah , get your priorities taken care of . The rocks can wait , for a little while anyway . Check with johnjsgems , he should be able to fix you up with good belts . Kingsley is also a good place to get them .
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