KW T660 cnt release kingpin lock jaws!

Set the trailer brakes Then lean the truck into the trailer and set the truck brakes. Then you should be able to release it.

 

Ste the trailer brake, back up an inch to take the pressure of the kingpin then try the release lever. Make sure the trailer isn't too low or too high.

 

exstreme case ive seen many times useing a pry bar and ply jaws open .from under the trailer.

 

Dxxx. . . Did that way back and my shoulders hurt for a week. Setting the brakes did the trick for me then, but i had to lean both ways a couple times. Then it was like butter, but it came back if the ground was uneven or if I had popped the red button and the trailer would push toward the truck before I could pull the jaws open.

Now what's this about releasing the jaws from inside the cab? In a KW? Never had that option myself.

 

As the members have said, be sure trailer isnt pulling on 5th wheel. Like they said, set trailer brakes then, gently back tractor into kingpin. It should release?
Far shot here, but fifth wheel may be adjusted up alittle to tight?
Let us know what you found, best wishes...