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XL-AS20067BM-en-US · 2021-02-05 · 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.
Pre-Operational Checklist
7. Pre-Operation
1. With the vehicle unloaded and on a level surface, chock
the tires to prevent vehicle movement.
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.
Failure to chock the tires prior to
commencing work could allow the
vehicle to move which, if not avoided,
could result in death or serious injury.
2. Build the air pressure above 85 psig (5.9 bars).
3. 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. Check the air springs for equal firmness
(Figure 9)
.
4. Exhaust the air from suspension air springs using the
valve that controls the PosiLift. Refer to plumbing
diagrams in Sections 5 and 6.
5. Verify that the 1/2" and 3/4" air spring mounting nuts are
properly torqued to 30-40 ft.-lbs. (40-54 N•m)
(Figure 9)
.
6. With the axle lifted, check for 1" (25 mm) minimum
clearance around the air springs
(Figure 9)
.
7. Check the axle alignment according to procedures in
Section 8.
IMPORTANT:
The SwingAlign design maintains proper
alignment under correct torque without
welding; DO NOT weld.
NOTE:
SwingAlign pivot connections are on roadside and
fixed alignment pivot connections are on curbside.
Refer to Section 8 for SwingAlign (non-welded)
Connection Axle Alignment procedure.
Figure 9
3/4" AIR
SPRING NUTS
1/2" AIR SPRING NUT
(BOTTOM OF AIR SPRING)
SHOCK ABSORBER
AIR SPRINGS
LIFT AIR SPRING
PIVOT BOLT
FRAME
BRACKET
