Coupling, Uncoupling – SAF-HOLLAND XL-FW311 XA-2801-03185 Series Elevating Fifth Wheel Top Plates User Manual
Page 2
COUPLING
(continued)
4.
Back under the trailer, engaging the fifth wheel
locks with the trailer kingpin. Pull forward to test
the completeness of the coupling as an initial
check. Set the tractor brakes. Next, visually
inspect the fifth wheel, as shown in FIGURE 3, to
verify that it is properly locked.
Failure to verify a proper couple can
result in tractor and trailer separation
which, if not avoided, could result in death or
serious injury.
5.
If operation on public streets or highways is
required, the manual secondary lock must be
engaged. To engage the secondary lock, remove
the handle loop end from the parking hole in the
top plate and allow the handle to move in and
allow the secondary lock to pivot behind the
locking yoke, as shown in FIGURE 4. See the
warning.
6.
Remove blocks. Release tractor and trailer brakes.
Raise trailer to desired height and move trailer.
IMPORTANT:
Elevating fifth wheels in the elevated
position are less stable than standard
fifth wheels. To avoid rollovers, do
not travel at excessive speeds, and do
not make sudden turns or maneuvers.
2
XL-FW311-03 Rev B
LOCKS COMPLETELY CLOSED AROUND KINGPIN
View looking into the throat of the fith wheel
Bolster plate is flush
with the fifth wheel
FIGURE 3
Failure to operate elevating fifth wheel
in the down position will reduce vehicle
stability which could cause death or serious injury.
IMPORTANT: This unit is not recommended for
operation on public streets and
highways. When such trailer
moves are necessary, the manual
secondary lock on the fifth wheel
must be engaged (see coupling
procedure #5 above) and the
fifth wheel must be in the
down position. Limit speed to
45mph maximum.
UNCOUPLING
1.
Position the trailer in the desired location and set
the TRAILER brakes. The TRACTOR brakes
should be released.
2.
Lower the trailer until it rests on its trailer
(landing gear) supports. Assure firm ground
support for the landing gear.
3.
Block the trailer wheels, disconnect and store air
and light lines.
4.
Check to see if the secondary lock is engaged.
If engaged, release it by pulling the secondary
lock handle. To keep the secondary lock open,
place the handle loop end in the parking hole in
the top plate. This holds the secondary lock away
from the locking yoke.
5.
While holding the lock control valve in, slowly
pull out from the trailer.
6.
After driving completely free from the kingpin,
release the lock control valve.
FIGURE 4
SECONDARY LOCK
PARKING HOLE
HANDLE LOOP END “IN” -
SECONDARY LOCK PIVOTS
BEHIND LOCKING YOKE
YOKE