SECTION 13: WHEELS, HUBS AND TIRES
PA1621 Maintenance Manual All Series | January 2017
19
vehicle Technical Publications USB flash
drive in PDF format to complete this step:
Dana Parts & Service Instructions S84U
Steer Axle HUB BEARING REWORK_
Manual NO 1963 A+B iss A
FIGURE 23: HUB FLANGE HEX CAP SCREW
FIGURE 24: HUB FLANGE HEX CAP SCREW
TIGHTENING SEQUENCE
14. Mount the wheel over studs, being careful
not to damage stud threads.
15. Screw in the hex stud nuts (refer to FIGURE
3 for sequence) so that wheel will position
itself concentrically with hub. This is
important, otherwise wheel may be eccentric
with hub and will not run straight. In this
initial step, slightly tighten the nuts to
correctly position the wheel.
16. Tighten stud nuts progressively as shown in
FIGURE 3. The final tightening should be
done with a torque wrench.
TORQUE: 450-500 lb-ft (610-678 Nm)
11. MERITOR DRIVE AXLE WHEEL HUBS
Drive wheels use a single oil-seal assembly.
They are lubricated from the oil supply in the
differential housing. Bearings are tapered
rollers, adjustable to compensate wear. Maintain
differential oil level with general-purpose gear
lubricant (refer to Section 24 "Lubrication" for
proper oil grade selection) to ensure adequate
oil supply to wheel bearings at all times.
Additional information is found in the following
manuals, included on your vehicle Technical
Publications USB flash drive:
Meritor Maintenance Manual 23A – Bus
and Coach Rear Drive Axles
Meritor Maintenance Manual 5A – single
reduction differential carriers
11.1 BEARING CHECK/ADJUSTMENT
To adjust drive wheel bearings, refer to
“Adjustment – Wheel bearings” heading in
Meritor Maintenance Manual 23A – Bus and
Coach Rear Drive Axles.
MAINTENANCE
Drive axle bearing end play
Check drive axle bearing end play at the
intervals specified by the Lubrication And
Servicing Schedule in Section 24:
LUBRICATION & SERVICING..
Refer to “Adjustment – Wheel bearings”
heading in Meritor Maintenance Manual 23A –
Bus and Coach Rear Drive Axles.
FIGURE 25: DRIVE AXLE WHEEL HUB
11.2 DISASSEMBLY AND REPAIR
Additional information is found in the following
manual:
Meritor Maintenance Manual 23A – Bus
and Coach Rear Drive Axles
1. Jack vehicle and remove axle shaft as
indicated in "Meritor - Maintenance Manual
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