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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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#1
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Jet 1442 Drive and Belt.
I need some opinions.
My lathe is 2 years old, been used a lot. It was hard to shift speeds and the spindle was slipping. I opened up the case and found..a lot of dust. When I got that out of the way, I found that the moveable side of the sheave wasn't moving very well. The shaft was clean, so I just sprayed on some dry lubricant, on both shafts. Immediate improvement. But... I also noticed that at low speed, spindle sheave fully closed, that the belt was running about 1/4" to 3/8" below the rim of the sheave. The belt was tight. On high speed, spindle sheave fully open, the belt was slipping. And the belt was running about 1/8" proud of the motor sheave. There were no cracks or breaks in the belt. I suspect that I may have worn off a bit of width over time, so the belt seats lower than it used to. Writing this, I realized that I didn't check that the spindle sheaves were fully closed, or if they were ALMOST closed. Do I need to replace the belt? If I do, can I safely use a link belt? Opinions and experience would be welcome. Walt Cheever |
#2
Posted to rec.crafts.woodturning
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Jet 1442 Drive and Belt.
Walt Cheever wrote:
I need some opinions. My lathe is 2 years old, been used a lot. It was hard to shift speeds and the spindle was slipping. I opened up the case and found..a lot of dust. When I got that out of the way, I found that the moveable side of the sheave wasn't moving very well. The shaft was clean, so I just sprayed on some dry lubricant, on both shafts. Immediate improvement. But... I also noticed that at low speed, spindle sheave fully closed, that the belt was running about 1/4" to 3/8" below the rim of the sheave. The belt was tight. On high speed, spindle sheave fully open, the belt was slipping. And the belt was running about 1/8" proud of the motor sheave. There were no cracks or breaks in the belt. I suspect that I may have worn off a bit of width over time, so the belt seats lower than it used to. Writing this, I realized that I didn't check that the spindle sheaves were fully closed, or if they were ALMOST closed. Do I need to replace the belt? If I do, can I safely use a link belt? Opinions and experience would be welcome. Walt Cheever I would replace it with a link belt. Mine runs quieter and seems more efficient with the link belt. Plus it shows no sign of wear on the sides, and I had replaced the original twice with regular belts before changing to the link belt. -- Gerald Ross Cochran, GA Yield to temptation, it may not pass your way again. - L. Long ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#3
Posted to rec.crafts.woodturning
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Jet 1442 Drive and Belt.
"Walt Cheever" wrote in message news:Eouag.733733$084.555748@attbi_s22... I need some opinions. My lathe is 2 years old, been used a lot. It was hard to shift speeds and the spindle was slipping. I opened up the case and found..a lot of dust. When I got that out of the way, I found that the moveable side of the sheave wasn't moving very well. The shaft was clean, so I just sprayed on some dry lubricant, on both shafts. Immediate improvement. But... I also noticed that at low speed, spindle sheave fully closed, that the belt was running about 1/4" to 3/8" below the rim of the sheave. The belt was tight. On high speed, spindle sheave fully open, the belt was slipping. And the belt was running about 1/8" proud of the motor sheave. There were no cracks or breaks in the belt. I suspect that I may have worn off a bit of width over time, so the belt seats lower than it used to. Writing this, I realized that I didn't check that the spindle sheaves were fully closed, or if they were ALMOST closed. Do I need to replace the belt? If I do, can I safely use a link belt? Opinions and experience would be welcome. I never gave my original belt a chance to wear. I replaced it with a link belt almost immediately, based upon the recommendations of others. It has worked fine ever since. I turn about two hours per day--not a lot, but a good test of the belt, which is showing no apparent wear after almost two years. FWIW . . . Max |
#4
Posted to rec.crafts.woodturning
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Jet 1442 Drive and Belt.
The belt on my 1442 seems to be 3/8 wide. It has had a lot
of use so maybe it's just worn down. I can only find 1/2 link belt replacement. Will this work? |
#5
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Jet 1442 Drive and Belt.
"Walt Cheever" wrote: (clip) can I safely use a link belt? (clip) ^^^^^^^^^^^^^^^^^^ Link belt is better, for the following reasons: 1.) Belt does not take a set, so it will run smoother. 2.) Belt length can be fine tuned to match the requirements of your Reeves drive. You want the belt to use the maximum travel of the movable side of the motor pulley--not bottoming out at low speed, nor rising past the rim at the highest speed setting. Link belt length can be changed in 1/2" increments. Regular V-belt comes only in 1" increments. Besides, with non-link belt, you what to buy a different belt to try a different length. 3.) If you stall the lathe, and damage a short part of the belt, you can replace a few links--you don't need to replace the whole belt. 4.) It is never necessary to disassemble the lathe to change a link belt. |
#6
Posted to rec.crafts.woodturning
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Jet 1442 Drive and Belt.
On Wed, 17 May 2006 00:47:32 GMT, "Walt Cheever" wrote:
Mine has looked "loose at high speeds since new but never seems to slip or anything... (thought I wish I could make it loose enough to slip) I've had a couple of feet of 3/8" link belt handy for 6 months but so far the belt seems fine.. I probably put what would be a lifetime of hours on the 1442 in a few months and abuse it occasionally but the only problems I've had were the need to lean and lube the pulley slide shafts or whatever they are and the worm gear on the shaft that goes to the speed handle.. I've had the handle come off twice, but it's a 5 minute fix once you get the belt cover off.. One of the times that I had the belt cover off, I ran a bead of silicon over the mating surfaces of the lathe and cover and it's been much quieted now... amazing how annoying a vibration buzz can be and how much it adds to the general noise level.. When I run the lathe at high (2,000+) speed with the cover off, the belt appears to loop upwards and looks very loose, but doesn't seem to be... If the belt ever breaks or I get the nerve to cut it off, I'll see if the link belt is any different... I need some opinions. My lathe is 2 years old, been used a lot. It was hard to shift speeds and the spindle was slipping. I opened up the case and found..a lot of dust. When I got that out of the way, I found that the moveable side of the sheave wasn't moving very well. The shaft was clean, so I just sprayed on some dry lubricant, on both shafts. Immediate improvement. But... I also noticed that at low speed, spindle sheave fully closed, that the belt was running about 1/4" to 3/8" below the rim of the sheave. The belt was tight. On high speed, spindle sheave fully open, the belt was slipping. And the belt was running about 1/8" proud of the motor sheave. There were no cracks or breaks in the belt. I suspect that I may have worn off a bit of width over time, so the belt seats lower than it used to. Writing this, I realized that I didn't check that the spindle sheaves were fully closed, or if they were ALMOST closed. Do I need to replace the belt? If I do, can I safely use a link belt? Opinions and experience would be welcome. Walt Cheever Mac https://home.comcast.net/~mac.davis https://home.comcast.net/~mac.davis/wood_stuff.htm |
#7
Posted to rec.crafts.woodturning
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Jet 1442 Drive and Belt.
On Wed, 17 May 2006 06:52:42 -0400, LBledsoe wrote:
The belt on my 1442 seems to be 3/8 wide. It has had a lot of use so maybe it's just worn down. I can only find 1/2 link belt replacement. Will this work? NO... The saw shop that I bought my 1442 sold me 1/2" link because they thought that was the size it took... I got it home and held it against the Jet belt and it was obviously too wide, so I bought a couple of feet of 3/8" for when I decide or need to change the belt... From comments today, I think I'll probably cut the old one off and go to link this weekend.. BTW: I had no experience with link belt, so I kept the 1/2" and put it on my Ridgid 14" band saw... Immediate improvement in noise level and (I think) vibration.. Mac https://home.comcast.net/~mac.davis https://home.comcast.net/~mac.davis/wood_stuff.htm |
#8
Posted to rec.crafts.woodturning
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Jet 1442 Drive and Belt.
On Wed, 17 May 2006 22:34:23 GMT, "Leo Lichtman"
wrote: "Walt Cheever" wrote: (clip) can I safely use a link belt? (clip) ^^^^^^^^^^^^^^^^^^ Link belt is better, for the following reasons: 1.) Belt does not take a set, so it will run smoother. 2.) Belt length can be fine tuned to match the requirements of your Reeves drive. You want the belt to use the maximum travel of the movable side of the motor pulley--not bottoming out at low speed, nor rising past the rim at the highest speed setting. Link belt length can be changed in 1/2" increments. Regular V-belt comes only in 1" increments. Besides, with non-link belt, you what to buy a different belt to try a different length. 3.) If you stall the lathe, and damage a short part of the belt, you can replace a few links--you don't need to replace the whole belt. 4.) It is never necessary to disassemble the lathe to change a link belt. #4 is THE reason that I have the link belt handy, Leo... After reading the instructions for changing the belt on the Jet 1442, (which strongly suggested having a dealer doing it), I decided that the ONLY way I was going to change the belt would be to put link on it.. I can just imagine trying to disassemble the headstock, bearings, etc. in my dusty, shavings filled garage... and hoping to get it together properly with no lost parts.. Mac https://home.comcast.net/~mac.davis https://home.comcast.net/~mac.davis/wood_stuff.htm |
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