SAF-HOLLAND XL-FW10028OM 31 NoLube and 33 Low Lube Series Fifth Wheels - Manual (Page 22)

22
XL-FW10028OM-en-US Rev A 09-10 Amendments and Errors Reserved. © SAF-HOLLAND, Inc.
Troubleshooting
Difficult to Uncouple from Trailer :
3
POSSIBLE CAUSE REMEDY
The tractor may be putting pressure
against locks. Lock the trailer brakes and back the tractor tightly
against the kingpin to relieve the pressure on the
fifth wheel lock, set the brakes, then pull the
release handle.
Tractor too low. Raise tractor suspension to proper ride height.
The secondary lock is not released. If manual secondary: pull release handle out and
up and lock open by hooking the handle on the
top plate casting. If a
automatic secondary: inspect
for missing or broken parts and repair or replace
as required using the appropriate service kit.
Accumulated rust or grime interfering
with the lock operation. Thoroughly clean the fifth wheel and relubricate
in accordance with the procedure in this Owner’s
Manual.
The locks are adjusted too tightly. Check lock adjustments in accordance with the
procedure in this Owner’s Manual.
The release handle will not stay out or
must be held out when unlocking. Replace the cam and release handle spring using
the appropriate SAF-HOLLAND service kit.
Missing or damaged release system
parts. The fifth wheel M MUST be rebuilt using the
appropriate SAF-HOLLAND service kit.
Casting bent/damaged at throat area,
restricting movement. The entire fifth wheel top plate M MUST be replaced.
Bent kingpin, damaged upper coupler,
or improper use of “lube plate” may be
interfering with lock movement. Check the kingpin and upper coupler as detailed
in Holland Service Bulletin XL-SB020. Repair/
replace as required. Remove any improperly
installed or improperly specified lube plates.
Refer to Holland Service Bulletin XL-SB004-01 for
lube plate warnings.