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XL-FW10028UM-en-US Rev B · 2021-08-04 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Operation Instructions
Figure 12
7. Coupling Procedures
IMPORTANT:
Following proper coupling
procedures for FW31
(NoLube) and FW33 (Low
Lube) fifth wheels is
extremely important.
Failure to follow all
of the procedures
contained in these
coupling instructions
may result in damage to
the lube plates.
1. Chock the trailer wheels.
2. Position the tractor so the center of the
fifth wheel is aligned with the kingpin.
3. Traveling in a straight line, slowly
back the tractor to the trailer. STOP the
tractor before making contact with the
trailer
(Figure 11)
.
IMPORTANT:
DO NOT make contact
between the fifth wheel
and trailer or damage to
the lube plates may occur.
4. Place the tractor into neutral and set
the parking brake.
5. Completely exhaust the air from the
tractor suspension, ensuring that
the fifth wheel is below the contact
surface of the trailer
(Figure 12)
.
6. Exit the cab and ensure that the fifth
wheel is below the upper coupler plate.
Verify proper fifth wheel height. If the
trailer is too low, use the landing gear
to raise the trailer height.
NOTE:
For proper operation of landing
gear, follow the instructions
published by the landing
gear manufacturer.
EXHAUST SUSPENSION AIR
BEFORE BACKING UP
Figure 11
TRAILER
(TOP)
KINGPIN
