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#1
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Emergency Pinch Roller Help!
I used some pinch roller cleaner that I don't usually use and it turned
my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? Thanks for any help. I'll check back in a while. Ted |
#2
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In my experience, that means they're fried.
Haven't played with reel to reel's for years now but I think a new roller is in order. On Sun, 06 Jun 2004 23:05:07 GMT, tedhyland wrote: I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? Thanks for any help. I'll check back in a while. Ted Mike Cleaver Broadcast Services Voice-overs, Newscaster, Engineering and Consulting Vancouver, BC, Canada |
#3
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In my experience, that means they're fried.
Haven't played with reel to reel's for years now but I think a new roller is in order. On Sun, 06 Jun 2004 23:05:07 GMT, tedhyland wrote: I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? Thanks for any help. I'll check back in a while. Ted Mike Cleaver Broadcast Services Voice-overs, Newscaster, Engineering and Consulting Vancouver, BC, Canada |
#4
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Let it sit for several hours, the cleaner may evaporate and leave a
functional roller. Also, try and rinse it with 99% isopropyl alcohol, which may rinse out the offending organic compounds. I had a similar problem with a roller cleaner product from a company called Geneva, sold at some of the recording supply houses here in L.A. It may just be too old. If it can't be salvaged, don't get a new roller from Studer. The roller from Athan in San Francisco is far better. It's one piece, no separate tires, and it has 3 "tire" protrusions on it, which will press against the in-between spots on the capstan that are not polished smooth. www.athan.com Speak to George, he's a good guy. tedhyland wrote: I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? Thanks for any help. I'll check back in a while. Ted -- Stephen Anderson ~At the end of the day, it's all about the music |
#5
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Let it sit for several hours, the cleaner may evaporate and leave a
functional roller. Also, try and rinse it with 99% isopropyl alcohol, which may rinse out the offending organic compounds. I had a similar problem with a roller cleaner product from a company called Geneva, sold at some of the recording supply houses here in L.A. It may just be too old. If it can't be salvaged, don't get a new roller from Studer. The roller from Athan in San Francisco is far better. It's one piece, no separate tires, and it has 3 "tire" protrusions on it, which will press against the in-between spots on the capstan that are not polished smooth. www.athan.com Speak to George, he's a good guy. tedhyland wrote: I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? Thanks for any help. I'll check back in a while. Ted -- Stephen Anderson ~At the end of the day, it's all about the music |
#6
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tedhyland wrote:
I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? If this is the case, your pinch roller was probably shot already, and you put on some cleaner that used methyl acetate and it softened up the already damaged urethane. You really need to get new ones or have the old ones recapped. In a pinch, you can probably put these on a lathe and turn them down with some fine sandpaper until you have a more usable surface. This will hold you for a while while the new ones come in. Pinch rollers are disposable items and need replacing every few years. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#7
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tedhyland wrote:
I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? If this is the case, your pinch roller was probably shot already, and you put on some cleaner that used methyl acetate and it softened up the already damaged urethane. You really need to get new ones or have the old ones recapped. In a pinch, you can probably put these on a lathe and turn them down with some fine sandpaper until you have a more usable surface. This will hold you for a while while the new ones come in. Pinch rollers are disposable items and need replacing every few years. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#8
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Stephen Anderson wrote:
I had a similar problem with a roller cleaner product from a company called Geneva, sold at some of the recording supply houses here in L.A. The Geneva/Nortronics pinch roller stuff was methyl acetate. Not really intended as a cleaner so much as a softener. It's good stuff on natural rubber rollers and it prevents them from crosslinking and getting shiny and hard. BUT, if you have urethane that is breaking down, it will make it break down faster. It may just be too old. If it can't be salvaged, don't get a new roller from Studer. The roller from Athan in San Francisco is far better. It's one piece, no separate tires, and it has 3 "tire" protrusions on it, which will press against the in-between spots on the capstan that are not polished smooth. Absolutely. And Athan can rebuild your old roller with new urethane too, so you'll have a spare. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#9
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Stephen Anderson wrote:
I had a similar problem with a roller cleaner product from a company called Geneva, sold at some of the recording supply houses here in L.A. The Geneva/Nortronics pinch roller stuff was methyl acetate. Not really intended as a cleaner so much as a softener. It's good stuff on natural rubber rollers and it prevents them from crosslinking and getting shiny and hard. BUT, if you have urethane that is breaking down, it will make it break down faster. It may just be too old. If it can't be salvaged, don't get a new roller from Studer. The roller from Athan in San Francisco is far better. It's one piece, no separate tires, and it has 3 "tire" protrusions on it, which will press against the in-between spots on the capstan that are not polished smooth. Absolutely. And Athan can rebuild your old roller with new urethane too, so you'll have a spare. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#11
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I used some pinch roller cleaner that I don't usually use and it turned
my rollers into a sticky gooey mess. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? My first reaction is that you need new rollers... they need to be round, and if you ran tape with them gooey, they probably aren't anymore. BTW, what did you use??? -jeff |
#12
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On Sun, 06 Jun 2004 23:05:07 GMT, tedhyland
wrote: I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? Thanks for any help. I'll check back in a while. Ted -- I have two types of pinch rollers for my Revox B77. The older seems to be made of a good and stable rubber and I usually wash it in water, using a mild household abrasive whic is good for any buildup and seems not to take away any rubber. Then there is a new one, made of synthetic rubber (urethane-based?) which was already unusable when I've got it (barrel-shaped) so I played with it. That one proved to be very hygroscopic and after washing in water it got very soft and sticky and it got a sort of greenish tacky coating. Then I heated it with a heat gun to see whether I could bring it back to shape. After becaming quite hot, the roller rubber developed a sort of an oily "sweat" which I didn't want to remove as I thought it was a sort of a softener. After a several hours drying, the roller rubber seemed OK again -- had it not been convex shaped. The old, rubber Revox pinch roller has an arrow at the rubber rim, the new ones hasn't. Just an idea to try to salvage these sticky Revox and possibly Studer pinch rollers... but this of course is not comparable with new rollers, which should be obtained befoehand for an optimum functioning. Also a word of caution for these hygroscopic materials. Edi Zubovic, Crikvenica, Croatia |
#13
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On Sun, 06 Jun 2004 23:05:07 GMT, tedhyland wrote: I used some pinch roller cleaner that I don't usually use and it turned my rollers into a sticky gooey mess. I usually use a slight soapy solution or isopropol alcohol but this time I didn't and now the tape is sticking to the rollers on my Studer A80 MKII. I have a session on Tuesday. Do I have to order new ones real fast or can I save them? Thanks for any help. I'll check back in a while. Ted -- I have two types of pinch rollers for my Revox B77. The older seems to be made of a good and stable rubber and I usually wash it in water, using a mild household abrasive whic is good for any buildup and seems not to take away any rubber. Then there is a new one, made of synthetic rubber (urethane-based?) which was already unusable when I've got it (barrel-shaped) so I played with it. It's supposed to be barrel shaped. I've been using one of those for 10 years now on my PR99. It was the new longer lasting upgrade. That one proved to be very hygroscopic and after washing in water it got very soft and sticky and it got a sort of greenish tacky coating. Then I heated it with a heat gun to see whether I could bring it back to shape. After becaming quite hot, the roller rubber developed a sort of an oily "sweat" which I didn't want to remove as I thought it was a sort of a softener. After a several hours drying, the roller rubber seemed OK again -- had it not been convex shaped. The old, rubber Revox pinch roller has an arrow at the rubber rim, the new ones hasn't. Just an idea to try to salvage these sticky Revox and possibly Studer pinch rollers... but this of course is not comparable with new rollers, which should be obtained befoehand for an optimum functioning. Also a word of caution for these hygroscopic materials. Edi Zubovic, Crikvenica, Croatia Yikes! You killed it. "It's dead, Jim" Richard H. Kuschel "I canna change the law of physics."-----Scotty |
#14
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Edi Zubovic edi.zubovic[rem wrote:
-- I have two types of pinch rollers for my Revox B77. The older seems to be made of a good and stable rubber and I usually wash it in water, using a mild household abrasive whic is good for any buildup and seems not to take away any rubber. Then there is a new one, made of synthetic rubber (urethane-based?) which was already unusable when I've got it (barrel-shaped) so I played with it. That one proved to be very hygroscopic and after washing in water it got very soft and sticky and it got a sort of greenish tacky coating. Then I heated it with a heat gun to see whether I could bring it back to shape. After becaming quite hot, the roller rubber developed a sort of an oily "sweat" which I didn't want to remove as I thought it was a sort of a softener. After a several hours drying, the roller rubber seemed OK again -- had it not been convex shaped. Yes. The urethane rollers get soft and fall apart for the same reason that we have sticky shed syndrome and that speaker foam deteriorates. It's the same breakdown process. The old, rubber Revox pinch roller has an arrow at the rubber rim, the new ones hasn't. The rubber rollers do the opposite... they crosslink and get a hard and shiny surface that slips. Seems to be worse in places with a lot of sulfur in the air. Just an idea to try to salvage these sticky Revox and possibly Studer pinch rollers... but this of course is not comparable with new rollers, which should be obtained befoehand for an optimum functioning. Also a word of caution for these hygroscopic materials. The real solution is to just replace the rubber coating. There are a bunch of places in the US that can do it... out in Croatia I would ask your local typewriter repair or offset print shop for local outfits that rebuild platens and rollers. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#15
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