Operator`s manual
OPERATION
355
If the fifth wheel is equipped with a sliding mounting, follow the
advisory labels attached to the component. Also, read the literature
provided by the manufacturer.
Always keep the fifth wheel plate well lubricated to
prevent binding between the tractor and trailer. A
binding fifth wheel could cause erratic steering
and loss of vehicle control that may result in
serious personal injury or death.
There are three operating positions for the fifth wheel locking
mechanism (ASF fifth wheel is shown as a typical fifth wheel):
Locked — This is the position that the fifth wheel will be in with a trailer
hooked up. In the locked position, the operating rod is retracted and the
safety latch will freely swing back and forth.
Lockset — This is the position the fifth wheel is in when uncoupling the
trailer. To achieve the lockset position, the operating rod is pulled out
with a slight upward motion. The operating rod shoulder will catch on
the plate casting. The safety latch is rotated toward the rear of the fifth
wheel.
vn-vhd.bk Page 355 Tuesday, July 1, 2008 9:44 AM