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XL-LG20004UM-en-US Rev B · 2018-09-17 · 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 Procedures
Figure 20
Figure 18
7.3 Landing Gear Operation During Coupling
Failure to perform procedures in a lighted
area that is clear of obstacles and personnel
could lead to a hazardous situation which,
if not avoided, could result in minor or
moderate injury.
NOTE:
For specific coupling instructions relating to
the fifth wheel, tractor, and trailer, refer to the
respective manufacturer's instructions.
1. Make sure the coupling area is flat, level and clear of
persons and obstacles.
2. Prepare the fifth wheel, tractor and trailer for coupling
per the manufacturer's instructions.
3. Back up to the trailer per the fifth wheel, tractor, and
trailer manufacturer's instructions, centering the kingpin
with the throat of the fifth wheel as illustrated
(Figure 18).
IMPORTANT:
DO NOT
attempt to couple until steps 4-6
are completed.
IMPORTANT:
DO NOT
couple the tractor and trailer at
an angle.
Failure to align the tractor and the trailer
properly could result in damage to the
landing gear.
4. Engage the tractor parking brake, and chock the trailer
wheels. Connect the brake lines and the electrical connections.
Support the slack in the line to prevent interference.
5. Make sure that the landing gear is in low gear and
engage the crank handle
(Figure 19)
.
Failure to lift and lower the trailer in
LOW GEAR could result in damage to the
landing gear.
6. With two hands on the crank handle, adjust the trailer
height according to the fifth wheel, tractor, and trailer
manufacturer’s recommendations.
Failure to maintain two hand control of
the handle and release SLOWLY could
cause spring back, which, if not avoided,
could result in death or serious injury.
7. Release the tractor parking brake. Couple and verify
that the fifth wheel jaws are locked per the fifth wheel
manufacturer's recommendations.
8. Engage the tractor parking brake. While still in low gear,
retract the landing gear until the pads just come off the
ground
(Figure 20)
.
Figure 19
TRAILER
(TOP)
KINGPIN
USE LOW
GEAR UNTIL
PADS JUST
COME OFF
GROUND
HANDLE
ENGAGED
HANDLE
DISENGAGED
