PRIMAAX
®
EX / PRIMAAX
®
for Volvo Vehicles
17730-254
27
Alignment & Adjustments
NOTE
Use a new QUIK-ALIGN pivot bolt kit (see Parts Lists Section of this publication) for any axle
alignment or disassembly of the QUIK-ALIGN connection. This ensures that the proper clamp
load is applied to the connection, so that the joint will not slip in service.
5. On the side being adjusted, remove the old QUIK-ALIGN fastener and replace it with a new
QUIK-ALIGN fastener. Snug the new QUIK-ALIGN fastener to 50/100 foot pounds. This will
hold the eccentric flanged collar in place against the frame hanger face, and within the
adjustment guide, but loose enough to permit the QUIK-ALIGN eccentric flanged collar to
rotate freely.
6. See additional Air Spring Warnings and Instructions in the Important Safety Notice Section
of this publication prior to deflating or inflating the suspension system.
7. Inflate the suspension by connecting the height control valve linkage to the height control
valve arm. Verify the air springs inflate uniformly without binding.
8. Verify correct ride height.
NOTE
When adjusting the alignment of an axle, the fasteners connecting the longitudinal torque
rod to the frame hanger, above the QUIK-ALIGN collar being adjusted, must be loose at the
frame hanger. This will allow the longitudinal torque rod to move freely with the axle while the
alignment is adjusted. Failure to do so will result in bushing preload in all rubber connections
on that side of the axle, shortening component life.
9. On the side of the axle being adjusted, loosen the fasteners connecting the longitudinal
torque rod to the frame hanger. Remove any existing shims from this connection. Leave
connection loose at this time.
10. Use a QUIK-ALIGN socket tool, Figure 7-4 (also see Tool Section of this publication) and
impact gun, see Figure 7-5, or a ½" square drive breaker bar to rotate the QUIK-ALIGN ec-
centric collar to align the axle.
FIGURE 7-4
FIGURE 7-5
11. Once the correct axle alignment is achieved, use a calibrated torque wrench to tighten the
1" QUIK-ALIGN locknuts to 525–575 foot pounds torque.
12. Fill any gap between the frame hanger and longitudinal torque rod with shims.
13. Tighten the longitudinal torque rod fasteners to the proper specification, see Torque Speci-
fication Section of this publication per model designation.
14. Re-check the ride height and the axle alignment to verify they are within the vehicle manu-
facturer’s specifications. See Rear Axle Alignment Inspection in this Section.
15. Return to the Drive Axle Alignment Inspection Procedure, Step 12, for the remaining
drive axles.
