OPERATING INSTRUCTIONS
3-7
Parking the Trailer
1. Position truck/semitrailer rig on a level, solid surface.
2. Set the
PARKING BRAKE
,
not the semitrailer
hand brake
, and check for proper brake holding.
3. Chock wheels of semitrailer.
4. Check for any air leaks in lines, relay valve, brake
pods, or any other air system component.
WARNING
Uncoupling Towing Vehicle
from Semitrailer
1. Park the semitrailer according to instructions in
“Parking the Trailer” on page 3-7.
2. Disconnect the emergency and service air lines and
attach them to the tractor gladhand holders. If
present, install dummy gladhands on trailer
couplings.
3. Disconnect the 7-pole cable and hydraulic lines from
the semitrailer and store with the tractor.
4. Pull the tractor fifth wheel plate latch release lever.
5. Attempt to pull the tractor forward. If the tractor
uncouples, verify all service lines are disconnected
and semitrailer wheels are chocked. If tractor does
not disconnect, repeat
6. Pull the tractor away from the semitrailer.
DANGER
Trailer Lift Lever
The
TRAILER LIFT lever
is located on the driver’s side
of the gooseneck assembly
(See Figures 3-1 and 3-3.)
It
is the middle lever and has three positions:
Table 3-1: Trailer Tilt Lever
When leaving the semitrailer unattended,
position all hydraulic controls to the neutral or
“off” position or disconnect the tractor hydraulic
hook-up.
Always check behind and under the truck and
semitrailer for persons or objects before moving.
Failure to check can lead to serious personal
injury or death to others, or damage to property.
TRAILER LIFT LEVER
UP
This position raises the semitrailer
deck, allowing the load blocks to be
lowered into transport position.
CENTER
This is the neutral position. The
semitrailer stays in its current position.
DOWN
This position lowers the semitrailer
deck to the ground, allowing the
detachment of the gooseneck or
allowing the weight of the semitrailer
deck and load to rest on the load
blocks. Also, this lowers the gooseneck
lift arms, permitting the transport of the
detached gooseneck.
Ea
st
ern
W
re
cke
r Sa
le
s
In
