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COUPLING & LOCKING
CAB VIEW
Indicator positions are showing
a coupled and locked 5th wheel
Indicator rod becomes
visible through window
Figure 2
PREPARING THE VEHICLE
AND TRAILER TO COUPLE
It is advised to perform trailer connections
to the 5th wheel on a firm and level surface.
Multiple wheel chocks should be used in front of
and behind trailer tires. Do not substitute objects
such as, but not limited to: stones, wood blocks, etc.
Lower or remove truck tailgate as required.
Position the towing vehicle with the 5th wheel centered
and in line with trailer or coach kingpin. Do not engage
the kingpin into 5th wheel at this time.
Set automatic transmissions to park and activate
the emergency brake. Set manual transmissions
to neutral and activate the emergency brake.
The rear stabilizer jacks must be retracted. Adjust the
front trailer lifting jacks so the trailer's kingpin skid plate
is approximately 1/2" below the top surface of 5th wheel
skid plate. Hooking up in this manner helps ensure proper
engagement of the trailer kingpin to most 5th wheel systems.
Never lower the trailer's kingpin into the 5th wheel hitch head.
Safety lynch
pin installed
Lock bar
fully retracted
Flip lock
Figure 3
seated in groove
Towing configuration,
jaws closed
PAGE 3 • 16115-INS-RA • 1.800.798.0813 • NEED ASSISTANCE?
Flip lock is fully seated
and lynch pin is installed
Green dot is visible at this
position in guide tube
PREPARING THE
5TH WHEEL TO COUPLE
Refer to Figure 2, above and Figure 3, below for this step.
Note that green dot is visible (cab side) through lock bar
guide tube and indicator rod is visible through window.
Flip safety lynch pin bail and remove lynch pin.
Lift flip lock, rotate clockwise and let hang.
Pull lock bar to full extension (approximately 3 1/2")
until jaws activate and open, then release lock bar.
Visually check that jaws are open
and ready to receive trailer kingpin.
Note that green dot and indicator rod have moved.
This signifies that 5th wheel jaws are not in their closed
and locked position. The yellow dot should now be visible.
Yellow signifies the 5th wheel is ready for coupling.
If the 5th wheel is in any configuration other than
that described in the first step, follow the preparation
troubleshooting guide on the following page.
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