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XL-AS20015BM-en-US Rev E · 2022-10-05 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Installation Instructions
6. Insert the cylinder plug assembly into the axle. Align the
vent notch to the 12 o’clock position
(Figure 10)
. Insert
the spindle plug into the axle until the shoulder contacts
the spindle bore. Drive the spindle plug into the axle
unit fully seated against the face of the spindle. Check
for gaps with a 0.050" feeler gauge. Repeat this step for
the roadside spindle with the single fitting spindle plug
(Figure 11)
.
NOTE:
If the axle is a parallel spindle with cross drilled
holes, take care to locate the cross drilled holes in
the windows of the spindle plug.
Axle vents must be installed, due to the
Tire Pilot Plus system not venting
through the wheel end. Failure to do so
could cause build up of pressure which,
if not avoided, could create wheel end
lube leaks.
7. Apply pipe thread compound to the vent fitting threads
if not present. Remove the compression brass nut and
O-ring from the vent. Slide vent fitting, brass nut and
O-ring over the air line coming out of the center hole
in the axle. Feed the excess air line through the vent.
Thread the vent fitting body into the axle hand tight
plus additional rotation until the vent is parallel to the
axle
(Figure 13)
. Tighten the compression nut by hand
and then use a wrench to tighten an additional 1/2 turn
(Figures 12 and 13)
.
Leave 12-18 inches of slack in the tube
through the vent assembly to allow for
suspension travel. Failure to do so
could cause excessive stress on the air
lines which, if not avoided, can damage
air lines.
continued
Figure 10
Figure 13
Figure 12
Figure 11
VENT NOTCH
FEELER GAGE CHECK HERE BETWEEN
SPINDLE FACE AND SPINDLE PLUG
PRE-APPLIED
THREAD
COMPOUND
COMPRESSION NUT
