PRIMAAX
®
EX / PRIMAAX
®
for International Truck Vehicles
17730-283
53
Component Replacement
5. Install the support beams into the frame hanger’s one side at a time. Care should be taken
to ensure the support beams are installed in the proper locations, for example: the left rear
support beam is installed in the left rear frame hanger.
NOTE
All the old sealant
MUST
be removed carefully with a hand scraper as to not damage the
U-beam assembly and the sealant application areas should be cleaned.
DISCARD USED QUIK-ALIGN FASTENERS. ALWAYS USE NEW QUIK-ALIGN FASTENERS TO COMPLETE
A REPAIR. FAILURE TO DO SO COULD RESULT IN FAILURE OF THE PART, OR MATING COMPONENTS,
LOSS OF VEHICLE CONTROL, PERSONAL INJURY, OR PROPERTY DAMAGE.
DO NOT ASSEMBLE QUIK-ALIGN JOINT WITHOUT THE PROPER FASTENERS. USE ONLY HENDRICKSON
GENUINE FASTENERS WITH SPECIAL COATING (H-COAT) TO SUSTAIN PROPER CLAMP FORCE.
FAILURE TO DO SO CAN CAUSE LOSS OF VEHICLE CONTROL, PROPERTY DAMAGE OR PERSONAL
INJURY AND VOID WARRANTY. ENSURE THAT THE QUIK-ALIGN FASTENER’S TORQUE VALUES ARE
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.
NOTE
Use a new QUIK-ALIGN pivot bolt kit (see the Parts List Section of this publication) for any axle
alignment or disassembly of the QUIK-ALIGN connection. This will help ensure that the proper
clamp load is applied to the connection and help prevent the joint to slip in service.
SERVICE HINT
Each frame hanger will have a pair of QUIK-ALIGN collars. Note which type of QUIK-ALIGN collar
is removed from which frame hanger location to facilitate the assemble process. Any eccentric
(with the square drive feature) QUIK-ALIGN collar should be mounted on the outboard side of
the frame hanger. Axle thrust angles can only be corrected on frame hangers equipped with
eccentric QUIK-ALIGN collars.
6. Verify the correct QUIK-ALIGN collar (eccentric/concentric) is in the correct location as
noted in the disassembly procedure.
7. Install QUIK-ALIGN connection with new Hendrickson fasteners and snug to about
50-100 foot pounds torque,
DO NOT
tighten at this time. The final torque must be done
after the alignment is complete.
8. Spread the support beams to facilitate the installation of the cross tube.
9. Install the cross tube into the support beam one side at a time.
10. If equipped, install the end cap making sure the “V” notch in the end cap is on the top.
FIGURE
8-21
11. Apply Loctite 277 to the
7
⁄
8
" fastener and install
in end hub.
DO NOT
tighten at this time, see
Figure 8-21.
T H E W E I G H T O F T H E U - B E A M A S S E M B LY I S
APPROXIMATELY 225 POUNDS. CARE SHOULD BE
TAKEN AT REMOVAL AND INSTALLATION TO PREVENT
PERSONAL INJURY OR DAMAGE TO COMPONENTS.
12.
Position the U-beam assembly on a floor jack
equipped with a 4" contact plate.
13.
Raise the U-beam assembly until the D-Pins
engage in the bottom cap.
SERVICE HINT
It may be necessary to rotate the QUIK-ALIGN
eccentric collars to pull the axle forward to allow the full engagement of the D-Pins into the
bottom caps.
SERVICE HINT
It may be necessary to raise or lower the front of the differential to allow the D-Pins to engage in
the bottom cap. Use a drift pin if necessary to align the D-Pins with the bottom cap.
Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • [email protected]
