Here's a link to a Mustang bobbin that calls for replacement of the bobbin every three years: https://www.defender.com/product.jsp?path=-1%7C135%7C2290066%7C2290076&id=66 6701. It states that this is to prevent inadvertent inflation. My guess is that you could safely extend the interval since it appears that the mode of failure is "fail-safe". The downside is that you could waste a good CO2 cartridge and may have your PFD stuck inside a locker. A friend just purchased one of these PFD's since one of his actuated inside a locker. Best to inspect the entire actuator annually.
Regards, Ron Ron Ricci S/V Patriot C&C 37+ Bristol, RI ron.ri...@1968.usna.com -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Rick Brass via CnC-List Sent: Wednesday, November 15, 2017 10:41 PM To: cnc-list@cnc-list.com Cc: Rick Brass Subject: Re: Stus-List Pfd The maintenance record on the two auto inflate PFDs I bought show they were made in October, 2015. Is it possible the bobbins in yours are marked with a 2015 manufacturing date and not an expiration date? The maintenance for the PFDs calls for visual inspection of the green ring in the inflator dome and of the green/red tab on the manual trigger, but I don't recall an expiration date or a recommended replacement interval on the bobbins. On mine, the slider of the zipper IS on the end over the inflation mechanism when the zipper is closed. And the zipper is a big improvement over the Velcro strips on the Sospenders and West Marine PFDs I've bought previously. Rick Brass Washington, NC _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
