PRIMAAX
®
EX / PRIMAAX
®
for Volvo Vehicles
17730-254
25
Alignment & Adjustments
proper alignment instructions for the PRIMAAX EX • PRIMAAX suspension model as
determined by the ride height of the suspension.
NOTE
Since the remaining drive axle(s) will be aligned relative to the front drive axle, it is essential
that the front drive axle is aligned within the vehicle manufacturer’s specifications prior to the
alignment of the remaining drive axle(s).
FIGURE
7-2
12. Using a trammel bar, measure the
distance from the spindle center of
the front drive axle to the spindle
center of the rear drive axle on both
sides of the vehicle, see Figure 7-2,
C
and
D
.
13. Calculate the difference between
measurements
C
and
D
.
a. If the measurements are within
the vehicle manufacturer’s
specifications, then the rear
drive axle alignment is accept-
able. Proceed to check the pin-
ion angles of the drive axles
(Step 15).
b. If alignment of the rear drive
axle
IS NOT
within the vehicle manufacturer’s specifications, then the alignment of
this axle
MUST
be corrected
BEFORE
checking the drive axle pinion angles. Correct
the alignment of this axle by following the proper alignment instructions for the
PRIMAAX EX • PRIMAAX suspension model as determined by the ride height of the
suspension.
14. Repeat Steps 12 and 13 for any remaining drive axle(s). Be sure all remaining drive axles
are aligned relative to the front drive axle.
15. After all drive axles are aligned, check the pinion angle of each drive axle with a digital
protractor. Refer to the vehicle manufacturer specifications for the required pinion angles,
see Figure 7-1.
a. If all pinion angles are within the vehicle manufacturer’s specifications then proceed
to Step 16.
b. If any pinion angle is out of the vehicle manufacturer’s specifications it must be
corrected. Follow the correct Pinion Angle Adjustment Suspension Procedure for the
PRIMAAX EX • PRIMAAX suspension model and ride height.
16. Recheck measurements to confirm adjustments. Repeat Steps 10 through 15 until the cor-
rect alignment and pinion angles are achieved.
17. When all drive axle alignments and pinion angles are within the vehicle manufacturer’s
specifications then the alignment procedure is complete.
FRONT
Trammel Bar
A
B
C
D