The fifth wheel may need to be moved slightly to
enable the locking wedges to fully lock.
Further verify that the plungers have engaged by
tugging the tractor forward while the trailer
brakes are locked and the wheels are chocked.
09/10/2010
f311131
A
B
A. Unlocked
B. Locked
Fig. 14.29, Jost Sliding Fifth Wheel
Fifth Wheels
14.12
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