PRIMAAX
®
EX / PRIMAAX
®
for Volvo Vehicles
Alignment & Adjustments
26
17730-254
ALIGNMENT ADJUSTMENT INSTRUCTIONS
FIGURE 7-3
SERVICE HINT
The Eccentric collars (with the square drive feature) are located on the outboard side of the
frame hangers with the concentric collars on the inboard side. The total range of fore/aft axle
adjustment is 1.0".
SERVICE HINT
A suspension equipped with eccentric QUIK-ALIGN collars on both sides of an axle can be
adjusted on both sides. A suspension equipped with an eccentric QUIK-ALIGN collar on only
one side of the axle can be adjusted only on the side that has the eccentric QUIK-ALIGN collar.
Contact the vehicle manufacturer for specifications.
DO NOT ASSEMBLE THE QUIK-ALIGN JOINT WITHOUT THE PROPER FASTENERS. USE ONLY
HENDRICKSON H-COATED FASTENERS TO SUSTAIN THE PROPER CLAMP FORCE. FAILURE TO DO SO
CAN CAUSE LOSS OF VEHICLE CONTROL, PROPERTY DAMAGE OR PERSONAL INJURY. ENSURE THAT
THE QUIK-ALIGN FASTENERS TORQUE VALUE IS SUSTAINED AS RECOMMENDED IN THE TORQUE
SPECIFICATIONS SECTION OF THIS PUBLICATION, FAILURE TO DO SO CAN CAUSE LOSS OF VEHICLE
CONTROL RESULTING IN PERSONAL INJURY OR PROPERTY DAMAGE.
1. Support the frame at ride height.
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.
2. See additional Air Spring Warnings and Instructions in the Important Safety Notice Section
of this publication prior to deflating or inflating the suspension system.
3. Disconnect the height control linkage assembly from the height control valve arm. Lower
the height control valve arm to exhaust the air in the air springs and deflate the rear sus-
pension. (See vehicle manufacturer’s instructions).
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.
4. Using the measurements from the Drive Axle Alignment Inspection Procedure, Step 11,
determine which QUIK-ALIGN collar will need adjusting to correct the axle alignment.
SERVICE HINT
If the axle can be adjusted on both sides, begin the adjustment on the side that is furthest out
of specification.