PRIMAAX
®
EX / PRIMAAX
®
for International Truck Vehicles
17730-283
57
Component Replacement
TOP PAD
DISASSEMBLY
1. Chock the front wheels.
2. Support the frame at ride height.
3. Disconnect the height control valve linkage assembly from the height control valve arm(s)
from the rubber grommet, see vehicle manufacturer’s instructions.
PRIOR TO AND DURING DEFLATION AND INFLATION OF THE AIR SUSPENSION SYSTEM, ENSURE THAT
ALL PERSONNEL AND EQUIPMENT ARE CLEAR FROM UNDER THE VEHICLE AND AROUND THE SERVICE
AREA, FAILURE TO DO SO CAN CAUSE SERIOUS PERSONAL INJURY, DEATH, OR PROPERTY DAMAGE.
4. See additional Air Spring Cautions and Warnings in the Important Safety Notice Section of
this publication prior to deflating or inflating the air system.
SOME VEHICLE APPLICATIONS, SUCH AS VEHICLES EQUIPPED WITH OUTRIGGERS, RETAIN SOME AIR
PRESSURE IN THE AIR SPRINGS AT ALL TIMES. PRIOR TO PERFORMING ANY MAINTENANCE, SERVICE,
OR REPAIR OF THE SUSPENSION, VERIFY EACH AIR SPRING IS COMPLETELY DEFLATED. FAILURE TO
DO SO COULD RESULT SERIOUS PROPERTY DAMAGE AND/OR SEVERE PERSONAL INJURY.
5. Lower the height control valve arm(s) to exhaust the air in the air springs and deflate the
rear suspension.
SERVICE HINT
Note the quantity of shims removed to maintain the correct pinion angle of the axle at assembly.
See Alignment & Adjustments Section of this publication.
6. Remove the fasteners from the longitudinal torque rod to top pad joint and shims (if
equipped), see Figure 8-31.
NOTE
Due to certain pinion angle configurations, the removal of the D-Pin bolts may be necessary to
access the U-bolt locknuts.
FIGURE 8-31
IT IS MANDATORY TO USE A FLOOR JACK EQUIPPED WITH A FOUR INCH CONTACT PLATE TO SUPPORT
THE U-BEAM ASSEMBLY AT THE CROSS TUBE TO FACILITATE SAFE LOWERING AND RAISING OF THE
U-BEAM ASSEMBLY. DO NOT USE A BOTTLE JACK. A BOTTLE JACK DOES NOT HAVE ENOUGH CONTACT
AREA AND CAN BE UNSTABLE. FAILURE TO DO SO CAN CAUSE COMPONENT DAMAGE OR RESULT IN
PERSONAL INJURY.
Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • [email protected]
