SAF-HOLLAND XL-FW436-01 FW31 Series Fifth Wheels with Traditional Slider - Manual (Page 15)

XL-FW436-01 Rev B SAF-HOLLAND, Inc. 15
MAINTENANCE PROCEDURES
Adjustment – Fifth Wheel Slide Mechanism
1/16”
CHECK FOR POSSIBLE
INTERFERENCE
Proper adjustment of the locking
plungers must be performed at
regular intervals and is required for
proper operation, load transfer and
distribution.
LOCK NUT
ADJUSTMENT
BOLT
RACK
UNLOCKED
(RELEASED)
RACK
LOCKED
(ENGAGED)
RACK
1. Loosen lock nut and turn the adjustment
bolt out (counter-clockwise).
2. Disengage and engage the locking
plungers. Verify that plungers have
engaged 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 in 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.
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, and
replace if necessary.
After inspection and adjustment, relubricate
all moving parts with a light, rust resistant oil.