PRIMAAX
®
EX / PRIMAAX
®
for International Truck Vehicles
17730-283
63
Component Replacement
2. Install the S-cam
3
/
8
" bolts, washers, and locknuts must be installed with the bolt heads on
the underside of the bottom cap, see Figure 8-40. Tighten the locknuts to 30-40 foot
pounds.
SERVICE HINT
S-cam
3
⁄
8
" bolts must be installed with the bolt heads on the underside of the bottom cap to
prevent interference between the support beam and the bolt fasteners during articulation.
3. Install the U-bolt around the S-cam housing and through the S-cam support bracket.
4. Install
the
5
⁄
16
" washers and locknuts. Tighten the locknuts to 20-30 foot pounds.
5. Remove the wheel chocks.
AXLE STOPS
DISASSEMBLY
1. Chock
the
wheels.
2. Remove and discard the fasteners connecting the axle stop to the frame.
3. Remove the axle stop.
4. Inspect the frame rail mounting surfaces for any cracks or damage.
ASSEMBLY
1. Install the axle stop on the frame.
2. Install new mounting fasteners.
3. Tighten axle stop fasteners to the vehicle manufacturer’s torque specifications.
4. Install any items removed
5. Remove the wheel chocks.
FRAME HANGER
THIS PROCEDURE TO REPLACE A FRAME HANGER, IS DONE WITH THE REMAINING FRAME HANGERS
CONNECTED TO THE FRAME AND IT IS ALSO NECESSARY THAT THE SUPPORT BEAMS AND THE
LONGITUDINAL TORQUE RODS ARE ATTACHED TO THE REMAINING FRAME HANGERS. FAILURE TO
DO SO COULD CAUSE THE AXLE TO SHIFT RESULTING IN POSSIBLE DAMAGE TO COMPONENTS OR
PERSONAL INJURY.
SERVICE HINT
Increasing the pinion angle may facilitate the disassembly/assembly of the frame hanger. To
increase the pinion angle place a floor jack under the axle pinion and raise slightly. This will
increase the pinion angle slightly easing disassembly/assembly.
DISASSEMBLY
1. Chock the front wheels.
2. Support the frame.
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.
5. Lower the linkage arm(s) to exhaust the air in the air springs and deflate the rear
suspension.
Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • [email protected]
