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How Do You Maintain the Locks on Johnny Jaws?

Why Johnny Jaws locks can mushroom over time, the field fix, and the material update.

Maintaining Your Johnny Jaws Lock

If you've been running a Johnny Jaws on your front-load truck for a while, you may notice the lock can start to wear. The lock is machined with a half moon, and over time it can mushroom from repeated use. When that happens, the lock will close fine but may not release when you go to unlock it.


The fix is straightforward. Joe Ruby keeps a file in the truck, and a couple of taps with the file gets the lock back in shape. His brother runs the same routine about once a year. Beyond field maintenance, Johnny Jaws has also done an update on the material used in the lock, which extends service life and helps reduce the wear that causes the mushrooming in the first place.


If you've got questions about your lock, replacement options, or how the material update affects an existing unit, get in touch.

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  • Video Transcript:

    Watch your fingers, I'm going to lock it. This lock, a lot of people we've had them go, "Our lock is wore out." It's machined with a half moon in it. You see that now? Yep, so it will go a little bit.


    I was telling Joe and Cody and Ryan yesterday that we've had them where this lock will lock, but then you go to unlock it and it won't. This has started to mushroom. So we keep a file in our truck and you just gotta hit it a couple times, file it down. My brother's doing it about once a year, what he's seen. But they've also done an update on the material that they're using on this lock.


    Have you guys ever replaced these yet?


    Nothing, nope. 


    And then you guys deal with the same weather we got. So in the winter does it ever seize up?


    We've never had it, never, no. 


    You don't lube it up or nothing?


    Nope.

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