Removing Transversal Radius Rod - PREVOST H3-41 Maintenance Manual

2. Remove drive axle wheels (if required, refer to
Section 13, "Wheels, Hubs And Tires").
3. Exhaust compressed air from the air supply
system by opening the drain cock on each air
reservoir and deplete air bags by moving
leveling valve arm down.
4. Install jacks under tag axle jacking points to
support the axle weight (Figure 14).
FIGURE 14: JACKING POINTS ON TAG AXLE
5. Disconnect tag axle lifting chain collars from
lower longitudinal radius rods.
6. Remove the propeller shaft as directed in
Section 9: Propeller Shaft in this manual.
7. Disconnect the tag axle brake chamber
hoses.
CAUTION
Position the hoses so they will not be damaged
when removing axle.
8. Disconnect hose from the air spring upper
mounting plate.
9. Remove the two shock absorbers as outlined
in Section 16, "Suspension", under "Shock
Absorber Removal".
10. Disconnect the lower longitudinal radius rods
as outlined in Section 16, "Suspension",
under "Radius Rod Removal".
11. Disconnect the transversal radius rod.
12. Disconnect the upper longitudinal radius rod.
13. Remove the air bellows retaining nuts from
each of the two upper mounting plates.
14. Use the jacks to move the axle forward to
clear the axle off the transmission. Lower the
axle.
15. Reverse removal procedure to reinstall.
CAUTION
On vehicles equipped with an automatic
transmission (with or without the output
retarder), move tag assembly very carefully.
Pay special attention to the U-shaped section,
as the transmission end components may be
easily damaged through a false maneuver.
NOTE
Refer to Section 16, "Suspension", for proper
torque tightening of suspension components.
NOTE
Refer to section 13 "Wheels, Hubs And Tires"
11023
for correct wheel bearing adjustment procedure.
4.5.3

Removing Transversal radius Rod

1. Unfasten bolts and nuts fixing transversal
radius rod ball joint to rear underframe.
2. Remove the air bellows retaining nuts from
each of the two upper mounting plates.
3. Install extractor tool g32952 onto transversal
rod.
4. Partially unscrew ball joint fixing bolt.
5. Tighten extractor threaded rod.
6. Supporting the transversal radius rod at all
times, gradually extract transversal radius rod
from tag axle.
7. Reinstall by reversing procedure.
FIGURE 15: INSTALLING EXTRACTOR TOOL
CAUTION
It is strongly suggested to use the extractor tool
in order to remove transversal radius rod.
PA1621 Maintenance Manual All Series | January 2017
SECTION 11: REAR AXLES
Torque: 198 lb-ft (268 Nm)
19