PRIMAAX
®
EX / PRIMAAX
®
for International Truck Vehicles
17730-283
55
Component Replacement
20. Use gloves when applying sealant; apply Sikaflex 221 polyurethane sealant 360 degrees
over tamper resistant cap edges, ensure there are no voids or gaps in sealant after applica-
tion, see Figure 8-23.
21. Use gloves when applying sealant; apply Sikaflex 221 polyurethane sealant 360 degrees
around cross tube/support beam connection, ensure there are no voids or gaps in sealant
after application, see Figure 8-24.
NOTE
DO NOT
allow the sealant to interfere with air spring mounting.
22. Install the air spring between the frame and cross tube, see Figure 8-25.
a.
PRIMAAX EX
— Ensure the
“air spring slot”
located in the bottom of the air spring
engages the
“beam notch”
on the top of the support beam.
b.
PRIMAAX
— Ensure the
“V” notch
in the end cap engages the
“locator tab”
on the
air spring.
23. Install the lower air spring mounting bracket around the cross tube, engaging the mounting
air spring studs, see Figure 8-25.
FIGURE 8-25
24. Using
HAND TOOLS
only, install the lower mounting fasteners and tighten to
20-30 foot
pounds torque.
25. Install the wheels and remove the axle support(s).
26.
See additional Air Spring Cautions and Warnings in the Important Safety Notice Section
of this publication prior to deflating or inflating the air system.
27.
Connect the height control valve linkage assembly to the height control valve arm(s) to
inflate the suspension.
28.
Remove the frame support.
29.
Remove the wheel chocks.
30. Verify the ride height is within specification, refer to vehicle manufacturer for proper ride
height adjustment.
NOTE
Alignment and QUIK-ALIGN final torque is necessary anytime the support beam is removed.
31. Check the alignment and adjust if necessary. See Alignment & Adjustments Section of this
publication.
32. 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.
Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • [email protected]
