7
FW8 (XA-201) FIFTH WHEEL
Trouble-Shooting Guide
Cause
1.
Kingpin wear.
2.
Fifth wheel out of adjustment.
3.
Fifth wheel cannot be adjusted
further.
4.
Lock is on first step. (Generation
III design only.)
PROBLEM: Excessive movement in the lock jaws
Remedy
1.
Check kingpin for acceptable wear
with Holland TF-0110. Replace kingpin
if necessary.
2.
Adjust fifth wheel following the
procedures in the Lock Adjustment
section of the maintenance instructions
included with your fifth wheel
(Holland publication XL-FW354).
3.
Rebuild fifth wheel using proper
rebuild kit.
4.
If your fifth wheel is a Generation III
style (manufactured after 9-1-99), the
lock and plunger may be engaged only
on the first step.
Check to see if the lock and plunger are
properly engaged, as shown in
Figure 6
below. If they are only engaged on the
first step, the fifth wheel must be re-
adjusted, as described in the Lock
Adjustment section of the maintenance
instructions (XL-FW354, page 3).
Cause
1.
Lack of lubrication on fifth wheel
top surface.
2.
Warped trailer upper coupler
plate.
PROBLEM: Hard steering or binding
Remedy
1.
Lubricate top of fifth wheel plate using
a high pressure, lithium-based grease.
Follow recommended lubrication
schedule as described in Service
Bulletin XL-SB41.
2.
Check upper coupler plate for flatness.
Replace if necessary. (Refer to Service
Bulletin XL-SB20 for additional
information on upper coupler plate
specifications.)
RIGHT!
WRONG!
✔
Figure 6
