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7.
The area supported by the fifth wheel
should be free of any large holes or
gouges (Figure 9).
8.
Any access holes that the fifth wheel
passes beneath should have chamfered
or radius edges.
9.
Check that any splits from the skid
plate to bolster plate are welded
adequately, and that there are no
sharp edges or abrupt changes in
elevation (Figure 10).
10. The upper coupler should extend
adequately rearward to maintain full
contact with the fifth wheel during
tight turning. If it does not, at a
minimum, the rear edges should be
chamfered or radius edges.
11. Make sure that any upper coupler residual
grease is free of heavy course grit.
12. Ensure that the upper coupler fifth
wheel contact surface is free of rust
and is not painted. The area should be
conditioned with a rust inhibitor such
as a light oil.
13. Verify that kingpin is not obstructed by
a kingpin lock or other security device.
Failure to remove kingpin
lock prior to coupling
could result in improper
coupling which, if not
avoided, could result in
death or serious injury.
14. Inspect kingpin for excessive wear
and damage (use HOLLAND Kingpin
Gage tool TF-0110 ) along with bolster
plate bow (See SAF-HOLLAND Service
Bulletins XL-SB020 and XL-SB033).
XL-FW10055UM-en-US Rev E · 2018-02-15 · 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 9
KEEP PATH OF FIFTH WHEEL FREE
OF LARGE HOLES AND GOUGES
6" MIN.
40"
6" MIN.
Figure 10
ACCESS HOLE
MAKE SURE THERE ARE
NO SHARP EDGES
NO ABRUPT TRANSITIONS IN ELEVATION
KEEP BOLTS AND
NUTS CLEAR OF
THIS AREA
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