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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
3. Installation Instructions
NOTE:
If your axles are prepped from SAF-HOLLAND
with spindle plugs and vents skip to number 8. If
your axle does not have a tapped hole, one will
need to be drilled. If a tapped hole is present skip
to number 3.
1. On the top dead center or 12 o’clock position of the axle
mark the centerline. At this centerline mark, use an ‘R’
drill bit to drill a hole using tap fluid or light cutting oil.
While drilling, periodically clean away metal shavings.
Use a telescoping magnet to go inside of the axle tube
and clear any remaining metal shavings
(Figure 5)
.
NOTE:
An axle drilling fixture is available if required.
Contact SAF-HOLLAND customer service for details.
2. Using a 1/8" - 27 NPSF tap and cutting oil, tap the hole
drilled in step 1.
3. Insert 1/4" DOT tubing through the center hole in the
axle. Feed the air line through the axle and out of the
curbside spindle end. Leave approximately 6" of air line
outside the spindle. Alternatively, a weld liner, fish tape,
or other method can be used to pull the tubing from one
spindle end to the center hole
(Figures 6 and 7)
.
NOTE:
Leave enough air line out of the center hole to
reach desired location for the regulator assembly
and account for suspension travel.
Protective loom (not shown) should be
used over the air line within the axle.
Failure to install a protective loom could
result in chaffing the air line which, if
not avoided could shut down the Tire
Pilot Plus system.
continued
Figure 5
Figure 7
Figure 6
