Removal And Reinstallation; Disassembly, Reassembly, Adjustment And Torque Chart; Zf A132 Drive Axle Alignment; Procedure - PREVOST H3-41 Maintenance Manual

SECTION 11: REAR AXLES
3.3

REMOVAL AND REINSTALLATION

The following procedure deals with the removal
of the drive axle assembly and its attachments
as a unit. The method used to support the axle
during removal and disassembly depends upon
local conditions and available equipment.
2. Raise vehicle from the front wheels and drive
axle wheels. Place jack stands under the rear
chassis hoisting points. Remove drive axle
wheels (if required, refer to Section 13,
"Wheels, Hubs and Tires".
2. Exhaust compressed air from the air supply
system by opening the drain cock on each
air reservoir.
3. Disconnect the propeller shaft as directed in
Section 9, "Propeller Shaft", in this manual.
5. Disconnect the lower end both height control
valve link then move the arm up to exhaust air
suspension.
6. Disconnect the ABS speed sensors connector
located over the differential housing.
NOTE
When removing drive axle, if unfastening cable
ties is necessary for ease of operation,
remember to replace them afterwards.
7. Disconnect the air brake supply hoses over
the differential carrier.
NOTE
Position the hoses so they will not be damaged
when removing the axle.
8. Install jack stands under the drive axle
subframe at the four locations shown on
.
FIGURE 13
FIGURE 13: SUPPORT THE DRIVE AXLE SUBFRAME AT
THE FOUR LOCATIONS SHOWN
16
PA1621 Maintenance Manual All Series | January 2017
16. Disconnect the lower ends of the four shock
absorbers as outlined
under
"Suspension"
Absorber Removal".
17. Remove the two sway bar links.
18. Remove the lower and upper longitudinal
radius rod supports as outlined in Section
16, "Suspension", under heading "Radius
Rod Removal".
19. Remove the transversal radius rod (panhard
bar).
20. Remove the two retaining nuts from each of
the four air springs lower mounting supports.
21. Disconnect the drive axle speed sensor.
22. Use the jacks to lower axle. Carefully pull
away the drive
underneath vehicle.
23. Reverse removal procedure to reinstall drive
axle.
NOTE
Refer to Section
suspension components' proper tightening
torques.
NOTE
Refer to section 13 "Wheels, Hubs And Tires"
for correct wheel

procedure.

3.4 DISASSEMBLY, REASSEMBLY,
ADJUSTMENT AND TORQUE CHART
Disassembly and re-assembly procedures are
covered in the following manual:
 ZF AXLE A132
207 002E
3.5

ZF A132 DRIVE AXLE ALIGNMENT

The drive axle alignment consists in aligning the
axle according to the frame. The axle must be
perpendicular to the frame. The alignment is
achieved with the use of shims inserted between
the lower longitudinal radius rod supports and
the frame.
Drive axle alignment is factory set and is not
subject to any change, except if the vehicle has
been damaged by an accident or if there are
requirements for replacement.
in Section 16,
heading
"Shock
axle assembly from
16, "Suspension" for
bearing adjustment
REPAIR MANUAL #5871