Jet 1632 Drum Sander Belt tracking - Page 2 - Router Forums
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post #11 of 14 (permalink) Old 03-11-2020, 10:28 AM
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Originally Posted by gdonham1 View Post
Well like most unsolveable problems I started over today. I removed the platen from the machine and found that there were two magnetic devices that are called a tracking kit. The pieces are ceramic with magnets inbeded that hold them to the sides of the platen supports. I had the belt going over the top of them and put them on with the belt in the track of the ceramic tracking kit piece. This helped but it still tracked slowly to the inside. So I backed off the belt tension bolts all the way and slowly adjusted until the belt would not stop with my hand on the belt. The tracking is stable and I will see if this fixed my problem.

The original belt tracked perfectly but eventually split at the seam. I replaced it with a Kingspor belt and it always tracked to the outside. I am wondering if the tracking aids may have been the problem with that belt. I bought a new Jet branded belt at Woodcraft and that one always tracked to the inside.

The tracker kit is on page 22 of the manual attached

Well maybe the belt will stay put for a while. I looked at a ports list on ereplacement.com and the tracking kit parts were shown. I never knew they were under there.

The tracking kit consists of two pieces, one for each side. Mine has two slits so you could turn it over if it was excessively worn. A magnet holds the tracking part to the platen on the side supports. After looking around on the internet I guess the tracking kit has been on Jet and Performax drum sanders for quite some time.
I am glad you got the tracker blocks to work correctly. Mine are in the drawer, they ruined 2 belts for me so I removed them. they caused the edges of the belts to break and get ragged.
At present mine is tracking fine without them, so I am not going to mess things up by putting them on. I hope you continue to have success with it.
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post #12 of 14 (permalink) Old 04-04-2020, 12:35 AM Thread Starter
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Well the trackers improved but did not completely fix my problem. So I kept changing the belt tension on one side or the other. Finally the seam on the belt broke. I ordered two belts from Kingspor and got them in. I put one on and it tracked pretty good.

I think if the belt tracks to the inside then you tighten the inside making it longer and cause the belt to track to the outside.

The new belt seems to be tracking pretty good. Only time will tell.

One thing I did change was on the drive roller. The outboard side was closer to the platen than on the motor side. I loosened the bolts and moved that roller further out to match the gap on the motor side. That may have helped. I had never adjusted the feed roller and the original belt tracked very well until the seam finally split. The second belt always tracked to the inside. The third belt always tracked to the outside. Now on the 4th belt and it seems to be tracking well.

I am so tired of this belt and have made a lot of adjustments and nothing worked until the new belt. (Well 3rd new belt, one more in reserve)
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post #13 of 14 (permalink) Old 04-04-2020, 11:56 AM
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Here is where I get my conveyor belts:
https://www.supergrit.com/view.php?pg=ConveyorBelts

It says that Jet 16/32 has 2 different length conveyor belts. I didn't know that. learned something new today. They also have them for the other brand machines.

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post #14 of 14 (permalink) Old 04-06-2020, 12:21 AM Thread Starter
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Herb,

Thanks for the info I have the 16-32 Plus. I dont think there were ever made very many of the plain 16-32 models. My Kingspor belts were $16.00 apiece and since I have gone through quite a few of them I went with cheap until I get this problem worked. The Jet belts are $60.00. The Kingspor are made differently from the Jet. The Kingspor seems to have a plastic belt on the inside of the belt where the Jet had a thick cloth resin belt. f
IF the belt keeps tracking correctly and they last I wont replace them but I did order 2 because the shipping was the same for 2 as it was for 1. Plus when the belt is broke the sander is useless.
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