Warning: I keep seeing people try to fix stuck shutters with a hammer

I swear, this happens at least once a month at my bench. Someone brings in a classic SLR, like a Pentax K1000, and says they tried a 'little percussive maintenance' because the shutter was slow. They used a tiny jeweler's hammer or even just tapped it with a screwdriver handle. Every single time, they've bent the delicate shutter curtain pins or warped the blade guides, turning a simple clean and lube job into a full curtain replacement. I had a guy from Tampa last week who proudly told me he 'freed it up' with three gentle taps, and then showed me the new, permanent crease right across the frame. It matters because that hammer tap is pure guesswork on a part you can't even see, and you're almost guaranteed to cause more damage. You need to open the camera, get the mirror box out, and actually see what's gunked up or out of alignment. Has anyone else found a good way to talk people out of reaching for the toolbox before the right tools?

2 comments

2 Comments

burns.brooke1mo ago

Yeah, that permanent crease is the worst. I usually show them a bent curtain pin under a loupe. Seeing the actual damage, that tiny piece of metal all mashed, makes it real for them. It proves the force goes somewhere bad, even with a gentle tap.

webb.xena1mo ago

That "permanent crease" story made me wince. It reminds me of my uncle who tried to fix a sticky door hinge on his car with a bigger hammer. He didn't just bend the hinge, he cracked the paint on the door pillar. The problem was a tiny, worn pin he couldn't even see, and his fix cost him a grand in bodywork. Some things just hide their real problems until you look.