PREVOST X3-45 COMMUTER User Manual

SECTION 13: WHEELS, HUBS AND TIRES
D DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual | Section 13 revised Jan 2022
21
10. ZF DRIVE AXLE WHEEL HUBS
The ZF A132 hypoid single reduction drive axle
hub (
FIGURE 38) is fitted with unitized bearing
known as compact bearing in ZF’s literature.
10.1 COMPACT BEARING (HUB UNIT) AXIAL
PLAY CHECK
Check the compact bearing (hub unit) axial play
at the intervals specified by the Lubrication And
Servicing Schedule in Section 24:
LUBRICATION & SERVICING. Furthermore, the
bearing must be checked in case of brake disk
change, ABS fault message and rising noise
level at increasing speed.
Perform compact bearing (hub unit) axial play
check as described in paragraph 6.2 HOW TO
CHECK THE AXIAL PLAY of the following
manual: OPERATING INSTRUCTIONS ZF
AXLE A132 (version with US hub) #5871
207 982 EN.
MAINTENANCE
Compact bearing (hub unit) axial play
Check the bearing axial play at the intervals
specified by the Lubrication And Servicing
Schedule in Section 24: LUBRICATION &
SERVICING.
10.2 COMPACT BEARING (HUB UNIT)
GREASE CHANGE
When grease is changed within the scope of the
maintenance, it is necessary to completely
remove the compact bearing.
Perform compact bearing (hub unit) grease
change as described in paragraph 7.3 GREASE
CHANGE IN THE HUB of the following manual:
OPERATING INSTRUCTIONS ZF AXLE A132
(version with US hub) #5871 207 982 EN.
MAINTENANCE
Compact bearing (hub unit) grease change
– ZF Lubricant class 12H
The compact bearing grease must be change
at the intervals specified by the Lubrication
And Servicing Schedule in Secti
on 24:
LUBRICATION & SERVICING.
The list of approved Lub
ricant Class 12H
grease types is found in ZF’s list of lubricants
TE-ML 12.
FIGURE 38: ZF A-132 DRIVE AXLE HUB ASSEMBLY
1
hub carrier
2
screen sheet
3
shaft seal (with impulse disc)
4
compact bearing (hub unit)
5
hub
6
shaft seal
7
slotted nut
8
locking plate
9
flange shaft
10
cap screw M18x1.5x50mm G10.9
TORQUE= 325 lb-ft (441 Nm)
(use 14mm hex socket driver “Allen” )
14mm hex socket driver “Allen”

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