Product Manual
Figure 13 Figure 14 Figure 15
COUPLING & LOCKING
PREPARING THE VEHICLE
AND TRAILER TO COUPLE
PREPARING THE
5TH WHEEL 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.
Open or remove the tailgate as required to safely back the tow
vehicle under the trailer and center the trailer kingpin with the
opening on the hitch head. Do not engage the kingpin into 5th
wheel at this time. Stop the tow vehicle when the trailer's skid
plate is approximately 4" from the 5th wheel's skid plate.
Set automatic transmissions to park and activate the
emergency brake. Set manual transmissions to neutral and
activate the emergency brake.
Adjust the front trailer lifting jacks so the trailer's kingpin skid
plate is approximately 1/2" below the top surface of the 5th
wheel's skid plate lead-in ramp. (See Figure 16 for proper
height setup prior to coupling.) NOTE: Trailer height setup is
critical to allow the 5th wheel jaws to engage the kingpin and
lock properly. Never attempt to lower the trailer's kingpin into
the 5th wheel.
If the "yellow" indicator is visible, visually check that the jaws
are open as illustrated in Figure 15 above. If the jaw's are open
and the handle is in the unlocked position, your A25 5th wheel
is ready to couple. Skip to the 'Coupling' section on next page.
If the "green" indicator is visible and the jaw's are closed,
they must be unlocked prior to use. Figure 13 illustrates the
jaws and handle in the closed and locked position.
Remove the safety latch pin from the 5th wheel's handle.
Open the jaws by pulling handle out about 1/2" and then
swinging it back toward the front of the tow vehicle. The
handle will latch in the unlocked position and the "yellow"
indicator will be visible from the tow vehicle cab.
If the 5th wheel handle will not latch in the unlocked position,
or the "red" indicator is visible, go to the troubleshooting
section to resolve the issue before attempting to couple your
trailer. WARNING: Attempting to couple your 5th wheel in
any configuration other then the "yellow" couple position
may result in damage to you trailer or 5th wheel. Always
ensure the jaws are open and unobstructed prior to coupling
to your trailer's kingpin.
Locked handle
"green" indicator
(circle)
Unlocked handle
"red" indicator
(octagon)
Couple handle
"yellow" indicator
(triangle)
4"
1/2"
Figure 16 Figure 17 Figure 18
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