Volvo VHD - Manual (Page 280)

274 Fifth Wheel Instructions
Make sure the operating rod is fully re-
tracted, the safety latch is positioned above
the handle and the latch swings freely.
If the fifth wheel is equipped with a manual
secondary lock, check to see that it is prop-
erly engaged.
NOTE! If you cannot get a proper cou-
pling, repeat this procedure. Do not use any
fifth wheel which fails to operate properly.
W9000180
Check the kingpin to fifth wheel clearance
by moving the tractor backward and for-
ward with the trailer brakes set. If the
clearance appears excessive (more than
1/8 in. [3 mm]), or if the jaw does not lock,
the fifth wheel should be inspected by a
qualified technician before proceeding.
Wind up the trailer landing gear (trailer
support) to its fully retracted position. Fold
down or remove the crank handle and place
it in the crank handle holder.
Check the air brake lines and the trailer
light cord connections.
Remove the wheel chocks from the trailer
wheels.
Proper pick-up and coupling to a trailer
is a serious matter. A trailer that be-
comes disconnected while in motion is
extremely dangerous to other traffic and
may result in death or severe personal
injury. To ensure a positive hook-up or
coupling, the procedures above should
be followed in every case.