Mack M359, Руководство пользователя

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STARTING AND DRIVING
FIFTH WHEEL INSTRUCTIONS
Fifth Wheel Visual Check
As an initial check, pull forward slightly
to test the completeness of the coupling
with trailer brakes applied.
A direct visual check is required to
ensure proper coupling. Several types of
improper couplings will pass the initial
pull test. Sound is not reliable. Do not
take for granted that you are properly
coupled. Get out of the cab and look.
Visual Check
Trailer Kingpin
Make sure the trailer kingpin is in the jaw
slot and that the jaw is closed behind
the pin. The kingpin should not
overhang the fifth wheel or be caught in
the grease groove. To verify that the
kingpin is actually in the fifth wheel slot
and the jaw is closed, the pin must be
visually inspected from the rear. Use a
flashlight, if necessary.
Visual Check
Make sure the trailer bed is resting on
the top surface of the fifth wheel plate
and that there is no visible gap between
the fifth wheel and the trailer bed plate.
Rest on Trailer Plate
Make sure the operating rod is fully
engaged, and is equipped with a safety
latch. Be sure the latch is in the locked
position.
If the fifth wheel is equipped with a
manual secondary lock, check to see
that it is properly engaged.
NOTE
If you cannot get a proper coupling,
repeat this procedure. DO NOT use any
fifth wheel which fails to operate properly.
Fifth Wheel Handle
Fifth Wheel Kingpin
Check the kingpin to fifth wheel
clearance by moving the tractor
backward and forward with the trailer
brakes applied. If the clearance appears
excessive (more than 3 mm [1/8 in.]), 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, glad hand
seals and the trailer light cord
connections.
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