7 hours ago
Difficult one to answer, but I will try.
The diaphragms do not appear to be the same material as the main diaphragms and are not as supple. I do not believe there is a right time to replace them, however if there is corrosion on the spring in particular I would replace them. My usual route is "if in doubt replace them", but they can range in price from 20 to 30euro. Wash the diaphragms in warm soapy water, dry them out and soak them in WD40 for about 10 minutes and then wipe the WD40 off with kitchen toweling. Many will frown at using WD40 on diaphragms, but I never had an issue doing it. Most important is to ensure the pathways for the air are clear
The diaphragms do not appear to be the same material as the main diaphragms and are not as supple. I do not believe there is a right time to replace them, however if there is corrosion on the spring in particular I would replace them. My usual route is "if in doubt replace them", but they can range in price from 20 to 30euro. Wash the diaphragms in warm soapy water, dry them out and soak them in WD40 for about 10 minutes and then wipe the WD40 off with kitchen toweling. Many will frown at using WD40 on diaphragms, but I never had an issue doing it. Most important is to ensure the pathways for the air are clear