I tried depressing the valve in the quick disconnect. One time I couldn't do it (I wasn't using a hammer/punch, just a socket extension and hand pressure). I grabbed the crescent wrench and slightly cracked open one hose fitting. I think that it would be easier than holding the fitting, holding a punch, and striking the punch with a hammer without damaging the quick disconnect or my hand. I didn't want to use a hammer on the punch simply due to the chance of messing up the quick disconnect. If I boogered up the quick disconnect I'd say bad words and generally be irritated with myself.
Fortunately, as I said, it's an infrequent problem.
Phil
