Operator`s manual

OPERATION
365
Attempting to couple with the trailer at an improper
height could result in a false or improper couple and
cause damage to the tractor, fifth wheel and trailer.
Check to see that the trailer is at the proper height for coupling. The
leading edge of the trailer plate should initially contact the fifth wheel
top plate surface about 200 mm (8 in.) behind the pivot point as the
tractor backs under the trailer. Raise or lower the trailer landing gear as
required to obtain this position.
Back under the trailer, keep the trailer kingpin centered in the throat of
the fifth wheel. After picking up the trailer — STOP — then continue
backing until the fifth wheel locks firmly on the kingpin. Stopping helps
prevent hitting the kingpin too hard.
To ensure a positive hook-up or coupling, these
procedures should be followed in every
case. A
trailer that is not connected correctly may
disconnect from the tractor while in motion,
resulting in an accident, personal injury or death.
vn-vhd.bk Page 365 Tuesday, July 1, 2008 9:44 AM