On Monday, February 3, 2014 10:03:02 AM UTC-5, Dan Marotta wrote:
Does Tost have an exchange program? "Eric Munk" wrote in message ... The vast amount of Tost releases get overhauled by Tost themselves, as it is the only authorized facility to do so in most of Europe. I'd suggest Tost has a more than fair amount of experience in judging wear and tear on their releases, also judging by their online publications on release wear, use and maintenance. Also, spring failure is not the only limiting factor in lifetime. Spring tension is too. Compare with Cair, who specifically state spring tension is to be measured on a yearly basis. At 23:41 30 January 2014, son_of_flubber wrote: On Thursday, January 30, 2014 2:02:14 AM UTC-5, Alan wrote: it does seem like a rather severely limited lifetime. They should be using better parts to make their releases last longer - a lot l= onger. 10,000 is obviously a NICE ROUND NUMBER that some engineer picked based on = the limited facts at hand at the time. It does not mean that the release wi= ll fail at 10,001 cycles, or even 20,000 cycles. 10,000 accounts for the i= nability to foresee the effects of the worse case abuse experienced by the = TOST release in the field. =20 When the service person takes a look at the release after 10,000 cycles, th= ey might as well replace the parts that might someday fail especially if th= at makes the customer feel that they got something of value for the expense= of sending the release in for renewal. Does anyone know what happens to the old springs? Do they get sent back to= TOST and are a random sampling of them then tested until failure? The res= ults of that testing would confirm that 10,000 was a sufficiently short ser= vice life. I doubt that TOST makes that evaluation based on uncontrolled f= ailures in the field..

Yes- quite reasonable. One US supplier maintains some stock of common releases for exchange.
UH