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Troubleshooting difficult to couple to trailer: 3 – SAF-HOLLAND XL-FW10017OM Simplex SE and II SE Series Fifth Wheels User Manual

Page 18

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XL-FW10017OM-en-US Rev A 1110 Amendments and Errors Reserved. © SAF-HOLLAND, Inc.

Troubleshooting

Difficult to Couple to Trailer:

3

POSSIBLE CAUSE

REMEDY

Attempting to couple too fast.

Couple in accordance with the procedure in this
Owner’s Manual.

The trailer may be too high; the kingpin
is not entering the lock properly.

Lower the trailer in accordance with
manufacturer’s instructions.

Lock is closed.

Manually pull the release handle out as far as
possible and swing the hinged lock open. If air
release equipped, set tractor brakes and actuate
fifth wheel control valve to open lock.

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 lock is adjusted too tightly.

Check lock adjustments in accordance with the
procedure in this Owner’s Manual.

The lock may be damaged.

The fifth wheel M

MUST be rebuilt using the

appropriate SAF-HOLLAND service kit.

Damaged, bent release handle.

Replace release handle using the appropriate
SAF-HOLLAND service kit.

Jammed safety indicator.

Inspect the release handle, if bent , replace using
the appropriate SAF-HOLLAND service kit.

Lock jaw opening is spread due to a
prior high coupling attempt.

Measure the width of the opening in the jaw. If
greater than 2.38”, replace using the appropriate
SAF-HOLLAND service kit.

Top plate is damaged just below the
lock adjustment pin.

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.