PRIMAAX
®
EX / PRIMAAX
®
for Volvo Vehicles
Component Replacement 38 17730-254
9. Remove the floor jack supporting the U-beam assembly.
10. Tighten D-Pin locknuts to
275-325 foot pounds torque, see Figure 8-11..
11. Install the air spring between the frame and cross tube.
a.
PRIMAAX EX — Ensure the slot in the bottom of the air spring engages the “beam
notch” on the top of the beam, see Figure 8-12.
b.
PRIMAAX — Ensure the “V” notch in the end cap engages the air spring locator tab on
the air spring, see Figure 8-12.
12. Install the lower air spring mounting bracket around the cross tube, engaging the mounting
studs on the air spring, see Figure 8-12.
FIGURE 8-12
13. Using hand tools install the lower mounting fasteners and tighten to 20-30 foot pounds
torque.
14. Install the wheels and remove axle support.
15. See additional Air Spring Cautions and Warnings in the Important Safety Notice Section of
this publication prior to deflating or inflating the air system.
16. Connect the leveling valve link rod to the height control valve arm(s) to inflate the suspen-
sion.(See vehicle manufacturer’s instructions)
17. Remove frame support(s).
18. Remove the wheel chocks.
NOTE Alignment and QUIK-ALIGN final torque is necessary anytime the U-beam assembly is removed.
19. Check the alignment and adjust if necessary. See Alignment & Adjustments Section of this
publication.
20. 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.
D-PIN BUSHING
You will need:
■
A vertical shop press with a capacity of at least 10 tons.
■
A D-Pin Removal Tool, Installation Tool, and Receiving Tool, see Special Tools Section
of this publication.
DISASSEMBLY
1. Remove the U-beam assembly. Follow U-beam Assembly removal procedure in this section.
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