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XL-AS20100BM-en-US · 2020-12-21 · 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.
Pre-Operation Information
11. Pre-Operation
NOTE:
In the United States, workshop safety requirements
are defined by federal and/or state Occupational
Safety and Health Act. Equivalent laws could exist
in other countries. This manual is written based
on the assumption that OSHA or other applicable
employee safety regulations are followed by the
location where work is performed.
1. With the vehicle on a level surface, bring air system to
operating pressure (above 85 psig/5.9 bars).
2. Shut off the vehicle and visually check all air control
system fittings for air leaks by applying a soapy water
solution and checking for bubbles at all air connections
and fittings. Examine the air springs
(Figure 18)
for
equal firmness.
3. Check the shock absorbers for proper installation and
make sure that the upper and lower 3/4" shock absorber
nuts are torqued to 140-175 ft.-lbs. (190-237 N•m)
(Figure 18)
.
4. Verify that the 1/2
"
air spring mounting nut is torqued
to 30-40 ft.-lbs. (41-54 N•m) (CBXAS 23 & 25), or lower
1/2
"
bolts are torqued to 30-40 ft.-lbs. (41-54 N•m)
(CBXAS 30), and the 3/4" air spring mounting nuts are
torqued to 40-45 ft.-lbs. (54-61 N•m)
(Figure 18)
.
5. With the suspension at full capacity, check that there is a
1" (25 mm) minimum clearance around the air springs.
6. The suspension’s ride height should be within ±1/4" (6 mm)
of the recommended design height. For proper ride
height, refer to Section 8.
7. Verify that the 1-1/8" pivot nuts are torqued to
550-600 ft.-lbs. (746-813 N•m)
(Figure 18)
.
IMPORTANT:
The SwingAlign design maintains proper
alignment under correct torque without
welding; DO NOT weld
(Figure 18)
.
NOTE:
SwingAlign pivot connections are on roadside
and fixed alignment pivot connections are
on curbside. For SwingAlign Connection Axle
Alignment procedure, refer to Section 9.
Figure 18
AIR SPRING MOUNTING NUT
UPPER SHOCK ABSORBER NUT HEIGHT CONTROL VALVE
AIR SPRING
PAN HEAD TORSION BOLT
SHOCK ABSORBER
