11
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.
Multi-Axle Trailer Installation
Figure 27
Figure 26
21. Install hubcaps to hubs if not pre-installed to your axles.
Torque hubcap bolts in a opposing pattern to 12-16 ft-lbs.
22. Install tire hoses by connecting the tire side first. Fittings
only need to be hand tight. Over-tightening can cause
damage to the seals inside the fittings and possible leaks.
Be certain to pay attention to the
orientation of the hubcap, rim, and valve
stem locations. If the orientation of the
rim to hubcap is incorrect, premature
failure of the tire hoses and/or damage
to the rims can occur.
Figure 24
shows
the proper orientation for a dual steel
wheel application with 5 hand hole rims.
Figure 25
shows the proper orientation
for an aluminum wide base single
application. The hubcap fitting position is
90 degrees relative to the valve stem in
Figure 25
.
Figure 26
shows the
proper orientation for dual steel wheels
with 2 hand hole rims.
4. Multi-Axle Trailer Installation
1. For trailers with more than 3 axles or for systems
that require 2 different tire pressure settings, multiple
regulator assemblies are required.
2. To install multiple regulators follow the steps in Section 3
with the following exceptions:
Install ABS Y-adapter cables in series for each
regulator assembly (male connector on ABS adapter #1
to female connector on ABS adapter #2,
Figure 27
).
Install Led light for each regulator assembly.
Figure 24
Figure 25
