So I live in military barracks and i have a shitty fridge in my room. It started making this horrible noise, and out of desperation I landed a solid right hook to the side of it. Like magic, the noise stopped. This has happened numerous times in my life. Something is broken, and some brute force fixes it. What happens inside that could solve the problem from percussive force?
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Generally speaking percussive maintenance is just hitting something when it’s not working. For something that might be jammed, a sudden impact can clear the jam. For a loose connection, sometimes a big hit can reposition the components into working.
Most times, however, it just breaks things worse.
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