InspectionQuestion 27 of 60
When inspecting the kingpin and fifth wheel coupling, what condition indicates a problem?
a.A greased fifth wheel plate
b.Locking jaws closed around the kingpin shank
c.A visible gap between the upper and lower fifth wheel plates
d.The safety catch engaged over the release lever
Explanation
A gap between the upper and lower fifth wheel plates indicates an improper coupling that could fail. There should be no space between the plates and the locking jaws should be closed around the shank. Finding a gap means you must recouple before driving.
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