freightliner PX113064S T 2016, Руководство пользователя

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8. Release the tractor parking brake then drive
forward slowly, allowing the trailer to slide down
the fifth wheel and off the ramps.
Air-Actuated Uncoupling
A dash-mounted kingpin release switch (if so
equipped) may be used to uncouple the trailer. See
Fig. 14.21 .
NOTE: In the event of an air system failure, air-
actuated kingpins can be manually released
following the instructions for manual uncoupling.
WARNING
Once the kingpin release switch has been
pushed, the kingpin lock is released. The vehicle
MUST NOT be driven with the trailer until the
trailer has been uncoupled and coupled again.
Failure to do so may result in separation of the
trailer from the tractor, possibly causing serious
personal injury or death.
Preparing the Trailer for Uncoupling
Before using the air valve to unlock a fifth wheel
kingpin, prepare the trailer as follows.
1. Slowly back the tractor tightly against the trailer
to relieve pressure on the fifth wheel locks.
2.
Apply the tractor and trailer parking brakes.
3. Chock the trailer rear wheels.
4.
Lower the trailer landing gear until the weight is
removed from the fifth wheel.
5. Disconnect the tractor-to-trailer air lines and
electrical cable. Plug the air lines to prevent dirt
or foreign material from entering the lines.
Air-Activated Kingpin Unlock
NOTE: The kingpin release will not activate if
the vehicle is moving, the parking brake is not
set, or if the switch is pushed for less than 3
seconds. Unless all of these conditions are met,
the trailer will not be uncoupled.
If the kingpin release switch is pressed for less
than 3 seconds,
Fig. 14.22 will appear on the
driver display. Press the back arrow to dismiss
the popup.
If the other two conditions are not met, a ’Kingpin
Release’ popup will appear listing the condition(s)
that need to be met.
1. Verify that both the yellow parking-brake and red
trailer-air supply knobs are out, the tractor and
trailer parking brakes are set, and that the trailer
is prepared for uncoupling.
2. Push and hold the kingpin release switch, shown
in
Fig. 14.21 , for a minimum of 3 seconds. The
system will apply air for 20 to 30 seconds to
ensure the kingpin unlocks. When the kingpin is
unlocked, a popup notification is displayed as
shown in
Fig. 14.23 .
If there is a problem with releasing the kingpin,
Fig. 14.24 will appear on the driver display.
3. Release the tractor parking brake.
4. Drive out from under the trailer.
f611341 03/09/2016
K−PIN
REL
Fig. 14.21, Kingpin Release Switch
f611985 11/23/2021
Fig. 14.22, Kingpin Release Not Activated Popup, ICC5
Fifth Wheels
14.9