Coupling System Flashcards
(8 cards)
Air& electrical lines- tractor
Not tangled pinched or damaged
Mounting bolts
•No missing bolts or nuts
•Fifth wheel properly mounted
Platform
(supports the fifth wheel )
•No cracks or breaks in platform
Locking jaws
•Locking jaws are fully closed around kingpin
5th wheel skid plate
•Properly mounted and secure
•All bolts and pins are secure and not missing
Kingpin/apron/gap
•Locking jaws hold kingpin in place
•not bent or damaged
•Apron not bent ,cracked or broken
•Trailer lying flat on 5th wheel no gap
Sliding 5th wheel locking pins
•No loose or missing pins in slide (if air check for leaks)
•Locking pins fully engaged
•5th wheel positioned properly that tractor frame will clear landing gear
Release arm
•Release arm secured n locked in position