SAF-HOLLAND XL-FW503 FleetMaster LowLube Series Fifth Wheels with Manual Sliding Secondary Lock XA-201-S10217, XA-201-S10579 & XA-231-S10217 - Manual (Page 18)

18 XL-FW503 Rev B
MAINTENANCE PROCEDURES
continued
Adjustment – Fifth Wheel Slide
Mechanism
1. Loosen lock nut and turn adjustment
bolt out (counter-clockwise).
2. Disengage and engage the locking
plungers. Verify that plungers have
seated properly as shown.
3. Now tighten adjustment bolt until it
contacts the rack.
4. Turn the adjustment bolt clockwise an
additional 1/2 turn, then tighten the
lock nut securely.
5. If plungers do not release fully to
allow fifth wheel to slide:
a. Check the air cylinder for proper
operation. Replace if necessary.
b. Check plunger adjustment, as
explained above.
c. If a plunger is binding on the
plunger pocket, remove the plunger
using a Holland TF-TLN-2500
spring compressor. Grind the top
edges of the plunger 1/16˝ as
shown. Re-install and adjust the
plungers, as explained above.
Proper adjustment of the
locking plungers must be
performed at regular intervals and is
required for proper operatiion, load
transfer and distribution.
6. If the locking plungers are too loose:
a. Check plunger adjustment, as
explained above.
b. Check plunger springs for proper
compression. Replace if necessary.
c. Check for plunger wear. If
necessary, replace, as described
above.
After inspection and adjustment, relubricate
all moving parts with a light, rust resistant
oil.
LOCK NUT
ADJUSTMENT
BOLT
RACK
LOCKED
(ENGAGED)
RACK
1/16”
CHECK FOR POSSIBLE
INTERFERENCE
UNLOCKED
(RELEASED)
RACK