I have never had this issue before so figured I’d ask. I have no problems unhitching but if I drive around bobtail for awhile the jaw halfway closes itself and then you can’t hitch another trailer until you pull the jaws apart. This gets grease all over my puller tool and is annoying. I even have to manually pull the jaw all the way open sometimes during a quick drop and hook. There doesn’t seem to be any excessive debris or grease holding it up but it’s hard to see in all the nooks around the jaw. What do you think is keeping it from opening all the way. It takes a bit of a pull to get it all the way open.
5th wheel jaw not staying open.
Discussion in 'Ask An Owner Operator' started by Midnightrider909, Aug 2, 2020.
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What brand fifth wheel?
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No clue. Its on a 2018 780. Its manual pull, not air release.
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Your gonna have to work on your jaw game.
tommymonza, bryan21384, Dave_in_AZ and 1 other person Thank this. -
If the Pull Handle won't open the Jaws i would have a Mechanic look at it ..I've had 5th wheels lock while bobtailing but the pull handle would always open it..Sounds like a serious problem ..Are you sure you are pulling the handle hard enough
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If you can’t open the jaws back up simply by pulling on the handle then I’d say you need to get it looked at if you’re not seeing anything out of the ordinary. If I’m bobtail and the road is rough mine will bounce closed but I can just pull the handle to open them back up before I back under the trailer.
Dave_in_AZ and Midnightrider909 Thank this. -
That said, those have a notch in the handle that should prevent what you’re describing, assuming that’s the brand you have.Studebaker Hawk Thanks this. -
I just went down to the truck and took this picture and this is after about 300 miles of traveling bobtail. As you can see the jars are about half closed.
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Looks like a Jost
blairandgretchen and Midnightrider909 Thank this. -
I pulled the handle again and it opened up quite a bit more but I’m used to opening this thing once and it staying open.
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