Radius Rod Removal - PREVOST H3-41 Maintenance Manual

SECTION 16 : SUSPENSION
deterioration, or damage. Any defective part
should be replaced.
Take off the load from the ball joint by lifting the
vehicle. Apply a load on the joint in all six
degrees of freedom (axial, radial, etc) with a
suitable lever bar. After the load is taken off, the
joint has to spring back into its starting position.
Free play is not acceptable.
Separation of rubber from ball pin or sheet metal
race is permissible up to a third of the
circumference.
When the following characteristics are noted, the
joint must be replaced:
• Free play between ball pin and housing;
• Radial cracking of the external sheet-metal
race (Figure 6)
• Any crack or fracture of a metal part
• Permanent deformation of the sheet metal
race
• Loosened bolt
• Broken bolt
• Loss of bolt
• Circlip (retaining ring) detached from groove
• Broken Circlip
• Loss of Circlip
• Incipient crack
If damage to the inner housing contour or the
Circlip groove is found during replacement of the
molecular bearing, the entire radius rod must be
replaced.
Ball pin
External joint shell
Radial cracking of the
sheet-metal race
FIGURE 7: BALL PIN BUSHING
3.3.2

Radius Rod Removal

1. Unscrew the nuts (or bolts) at each extremity
of the radius rod.
2. Remove the radius rod.
NOTE
One end of the transversal radius rod is fitted
18 PA1621 Maintenance Manual All Series | Section revised October 2018
P artial separation
is permitted
with a conical (taper) pin that will require the
use of an air hammer and a pointed 13mm
(1/2inch) diameter chisel to remove it from the
chassis (after the retaining nut is removed
from the rod end). Care must be taken not to
damage the rod pin threads.
CAUTION
Do not hit the cast parts of the chassis to
disengage taper radius rods; this could lead to