PREVOST X3-45 COMMUTER User Manual

SECTION 11: REAR AXLES
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual Section 11 revised Jan 2021
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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 5).
FIGURE 5: JACKING POINTS ON TAG AXLE 11023
5. Remove the propeller shaft as directed in
Section 9: Propeller Shaft in this manual.
6. Disconnect the tag axle brake chamber
hoses.
CAUTION
Position the hoses so they will not be
damaged when removing axle.
7. Disconnect hose from the air spring upper
mounting plate.
8. Remove the two shock absorbers as
outlined in Section 16, "Suspension", under
"Shock Absorber Removal".
9. Disconnect the lower longitudinal radius
rods as outlined in Section 16,
"Suspension", under "Radius Rod
Removal".
10. Disconnect the transversal radius rod.
11. Disconnect the upper longitudinal radius
rod.
12. Remove the air bellows retaining nuts from
each of the two upper mounting plates.
13. Use the jacks to move the axle forward to
clear the axle off the transmission. Lower the
axle.
14. 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"
for correct wheel bearing adjustment
procedure.
3.3.3 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. Figure 6
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.
Torque: 198 lb-ft (268 Nm)
FIGURE 6: INSTALLING EXTRACTOR TOOL
CAUTION
It is strongly suggested to use the extractor
tool in order to remove transversal radius rod.

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in