4
FW35 (XA-351) FIFTH WHEEL
Trouble-Shooting Guide
7.
Fifth wheel locks adjusted too
tight.
8.
Release handle will not stay out to
allow uncoupling.
9.
Other missing or damaged release
system parts.
10.
Casting bent/damaged at throat
area restricting movement.
PROBLEM: Difficult to uncouple from trailer (con’t.)
7.
Re-adjust fifth wheel locks following
the procedures in the Lock Adjustment
section of the maintenance instructions
included with your fifth wheel
(Holland publication XL-FW-308).
8.
Fifth wheel must be rebuilt. Obtain the
proper rebuild kit for your model top plate.
9.
Rebuild fifth wheel with the proper
Holland rebuild kit.
10.
Replace entire fifth wheel.
PROBLEM: Difficult to couple to trailer
Cause
1.
The trailer may be too high; the
kingpin is not entering the locks
properly.
2.
Locks are closed.
Remedy
1.
Chock trailer wheels. Then using LOW
GEAR, lower the trailer landing gear
until the bolster plate is aligned with
the fifth wheel, as shown in
Figure 3
.
2.
Pull release handle all the way out
(
see Figure 4
).
OK
FIFTH WHEEL
MUST LIFT
TRAILER
➠
➠
FIFTH WHEEL
TILTED DOWN
4"- 6"
USE LOW
GEAR
FIFTH WHEEL
WILL NOT LIFT
TRAILER
Wrong
LOCKS ARE CLOSED
OK
LOCKS ARE OPEN
Figure 3
Figure 4
