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torque specified by Rega for bolts cartridges

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torque specified by Rega for bolts cartridges

Postby clearaudiolover » 06 May 2012 09:10

Hello,

Does anyone know how much torque is specified bij Rega for tighten up the bolts for a Rega Exact cartridge?

robin
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Re: torque specified by Rega for bolts cartridges

Postby clearaudiolover » 06 May 2012 14:44

Nobody????????????????
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Re: torque specified by Rega for bolts cartridges

Postby 13oots2 » 06 May 2012 16:14

Patience my friend!

Can't see why Rega would specify this, just do up so cartridge is firmly secured. No need for silly amounts of torque as you are likely to damage the cartridge body and arm bearings.
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Re: torque specified by Rega for bolts cartridges

Postby ripblade » 06 May 2012 16:20

Do they supply the torque wrench as well?
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Re: torque specified by Rega for bolts cartridges

Postby clearaudiolover » 06 May 2012 16:27

ripblade wrote:Do they supply the torque wrench as well?


no, but the manual says that a torque wrench is needed. I think it's strange.

tighten up the bolts too much can damaged the cartridge but too loose and it sounds warm and lush. But somewhere in between there is an optimum. But at what torque?
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Re: torque specified by Rega for bolts cartridges

Postby kelvinMunson » 06 May 2012 16:33

The torque required would vary depending upon the material used to manufacture the screws and headshell, as well as the catridge. They only need to be tightened enough to pinch up and not come undone. If it sounds "lush" tighten it a little more. Maybe you could tune it by ear and let us know the optimum torque ?
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Re: torque specified by Rega for bolts cartridges

Postby clearaudiolover » 06 May 2012 16:37

i dont have a torque wrench but i want to buy one, but only if i know the specified torque.
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Re: torque specified by Rega for bolts cartridges

Postby ripblade » 06 May 2012 16:50

Why would Rega specify a torque wrench, then fail to provide the required torque figure?
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Re: torque specified by Rega for bolts cartridges

Postby clearaudiolover » 06 May 2012 17:05

ripblade wrote:Why would Rega specify a torque wrench, then fail to provide the required torque figure?


yes youve got it. Let your dealer do it for you says the manual. im sure that 9 out of ten dealers don't have a torque wrench. It is so simple. Rega has done all the research and they know the optimum amount of torque so why don't specify it??
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Re: torque specified by Rega for bolts cartridges

Postby nabil » 06 May 2012 17:28

Rega sells a torque wrench-I've seen a few for sale on audiogon.
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Re: torque specified by Rega for bolts cartridges

Postby ripblade » 06 May 2012 17:39

That explains it: Rega sells the wrench at considerable cost. It looks like a break type (or maybe not), but without any adjustable settings....

http://www.gcaudio.com/cgi-bin/store/sh ... cgi?id=644

How does one check if it's properly calibrated? As far as I know, all precision torque wrenches require periodic calibration.
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Re: torque specified by Rega for bolts cartridges

Postby kelvinMunson » 06 May 2012 17:39

clearaudiolover wrote:
ripblade wrote:Why would Rega specify a torque wrench, then fail to provide the required torque figure?


yes youve got it. Let your dealer do it for you says the manual. im sure that 9 out of ten dealers don't have a torque wrench. It is so simple. Rega has done all the research and they know the optimum amount of torque so why don't specify it??


Have you contacted Rega to ask them ?
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Re: torque specified by Rega for bolts cartridges

Postby kelvinMunson » 06 May 2012 17:44

ripblade wrote:That explains it: Rega sells the wrench at considerable cost. It looks like a break type (or maybe not), but without any adjustable settings....

http://www.gcaudio.com/cgi-bin/store/sh ... cgi?id=644

How does one check if it's properly calibrated? As far as I know, all precision torque wrenches require periodic calibration.



Absolutely correct; in the aerospace industry, in addition to periodic calibration, we always check the wrench is set correctly before every use, against a calibrated guage.

Since it is apparently so critical in this case I would be very concerned about the accuracy of the wrench.
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Re: torque specified by Rega for bolts cartridges

Postby awkwardbydesign » 06 May 2012 18:48

Engineers method; tighten to breaking point, then slacken off a quarter turn. And before anyone tries it, DON'T.
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Re: torque specified by Rega for bolts cartridges

Postby Hanuman » 06 May 2012 18:49

I've seen this wrench in use and apart from the torque function it's a godsend for those situations where the screws must be inserted from below for some reason. I'd love to find another (cheaper) fat screwdriver like this that can sit on the base of the turntable while you're tightening.
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