PRIMAAX
®
EX / PRIMAAX
®
for Volvo Vehicles
Component Replacement
32
17730-254
TRANSVERSE TORQUE ROD
The transverse torque rod is not supplied by Hendrickson, although it is a required component.
Hendrickson is not responsible for components supplied by the vehicle manufacturer. For assis-
tance with inspection, maintenance and rebuild instructions on these components see vehicle
manufacturer.
PRIMAAX EX / PRIMAAX SUSPENSIONS INCORPORATE TRANSVERSE RODS FOR VEHICLE STABILITY. IF
THESE COMPONENTS ARE DISCONNECTED OR ARE NON-FUNCTIONAL, THE VEHICLE SHOULD NOT
BE OPERATED. FAILURE TO DO SO CAN RESULT IN ADVERSE VEHICLE HANDLING, LOSS OF VEHICLE
CONTROL, POSSIBLE TIRE CONTACT WITH THE FRAME, PREMATURE COMPONENT DAMAGE, OR
SEVERE PERSONAL INJURY.
LONGITUDINAL TORQUE ROD
NOTE
Some torque rods assemblies equipped on the PRIMAAX EX • PRIMAAX suspension have curled
end hubs and are not re-bushable. The entire torque rod assembly must be replaced. This
feature provides superior bushing retention in the torque rod end hub.
■
These torque rods can be identified by the part number 67428-XXX or the suffix N after any
part number (i.e. 62000-615N).
DISASSEMBLY
1. Chock the wheels of the vehicle.
SERVICE HINT
Note the quantity of shims removed to maintain the pinion angle of the axle at assembly. See
Alignment & Adjustments Section of this publication.
2. Remove the torque rod mounting fasteners and shims (if equipped), see Figure 8-3.
3. Remove the torque rod.
4. Inspect the mounting surfaces for any wear or damage, replace if necessary.
FIGURE 8-3
ASSEMBLY
1. Install the torque rod.
2. Install the mounting fasteners and any shims that were removed.
NOTE
Hendrickson recommends the use of Grade 8 bolts and Grade C locknuts be used for all torque
rod attachments.
NOTE
It is mandatory to have the vehicle at proper ride height prior to tightening the ¾" straddle
bushing and the
7
⁄
8
" top pad through bolt locknuts to torque specifications.
Washer
Bolt
Longitudinal Torque Rod
Straddle Bushing
Locknut
Washer
Hanger
Inner Sleeve Bushing
7 8
/ " Washer
7 8
/ " Bolt
7 8
/ " Locknut
Tightening Torque 525-575 ft. lbs.
7 8
/ " Washer
Top Pad
Shim (if required)