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Old 06-26-2017, 11:37 PM   #1
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TT came unhitched

This weekend I had a very interesting experience while trying to back into really rough (uneven) ground when the tongue popped off the ball. I was able to recover mainly due to my WD bars and the fact that I was backing.

Coming home I took extra care to insure the hitch was latched before pulling out. No problems on the way home or backing into my driveway.

I have not seen a coupler like the one on my Timber Ridge - all of the ones I have had before have a half circle that goes around the lower part of the ball. This one seems to have a dome shaped piece that presses against the lower half of the ball.

Still baffles me as to why it popped off.
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Old 06-26-2017, 11:44 PM   #2
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Only hitches I have ever seen come off were because the ball was smaller than the coupler. Both should be stamped with their size. I would check this closely.
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Old 06-26-2017, 11:52 PM   #3
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I can only think of two things that might cause that to happen. Wrong size ball...or coupler has too much play.

I cannot envision the type of coupler you have...but most couplers, when fully uncoupled, allow some adjustment on them to take up the excess play. You don't want it so tight that it won't slip over the ball...but definetly tight enough to not come uncoupled.

Take a close study to see how it's assemled, and look for a threaded component that can take adjustment to change the geometry of the catching mechanism.
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Old 06-27-2017, 06:20 AM   #4
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Are you sure it was properly coupled to begin with?

I actually rushed through a hitch-up and ended up with the hitch's locking plate, the cup that should be under the ball, resting on top of the ball. In my defense it was wicked cold and pouring rain when I hitched up.

But we travelled all day like this without becoming unhitched. The weight distribution bars kept the hitch on the ball.
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Old 06-27-2017, 06:35 AM   #5
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The only time I have ever lost a trailer was because I didn't close the coupler. Was a small flat bed and made it 5 or so miles before it started dancing on the chains. I knew the split second I saw it I had not closed the coupler.
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Old 06-27-2017, 09:43 AM   #6
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Ball is correct size. But is 12 yrs old. Never had a problem on my old Arctic Fox.
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Old 06-28-2017, 09:30 PM   #7
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Solve the mystery - operator error I simply did not have it latched - It does not operate like any other hitch latch I have seen. Tonight I took the hitch and ball and took it to the hitch and played with it - the way I was doing it the hitch simply came undone - figured out that even though it does not look like it is latched it is. Once I found that sweet spot it held the ball in place no matter what I did.
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Old 06-28-2017, 11:51 PM   #8
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Thanks for the followup. Good to know. That latch type was new to me too.

By the way, it works a lot better after spraying some grease into the works. Much easier action seems to allow a more positive feel to latching and unlatching.
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