Differential Making Noise - Meritor MS-113 Maintenance Manual

Section 5
Diagnostics

Differential Making Noise

Visually inspect
the carrier in
the axle housing.
Yes
Damaged?
No
Drain and inspect
the lubricant.
Refer to MM 1.
Yes
Contaminated?
No
Check the drive pinion
end play. Refer to Section 4.
Any end play looseness
indicates possible
bearing damage.
Remove the carrier from the
axle housing. Refer to Section 2.
Visually inspect the ring gear
and pinion for damage. Refer to
TP-9955, Failure Analysis for
Drive Axle Components.
Yes
Damaged?
Inspect the differential
bearings for damage. Refer to
TP-9955, Failure Analysis for
Drive Axle Components.
Yes
Damaged?
No
Check the ring gear
backlash and record the
reading. Refer to Section 4.
Use the backlash reading when
you reassemble the carrier.
Page 30
When the carrier is
reassembled later,
set the backlash to
Remove the carrier
the recorded reading.
from the axle housing.
Repair the carrier
or install a
remanufactured
carrier.
Refer to Section 2.
Determine
the source of
contamination.
Repair the carrier
or install a
remanufactured
carrier. Refer
to Section 4.
Repair the carrier
or install a
remanufactured
carrier. Refer
to Section 4.
Copyright 2002
ArvinMeritor, Inc.
Yes Backlash No
within spec?
Remove the main
differential and
ring gear from
the carrier. Refer
to Section 2.
Inspect the main differential bearings
for damage. Refer to TP-9955, Failure
Analysis for Drive Axle Components.
Yes
Damaged?
No
Disassemble the
main differential
and ring gear.
Refer to Section 2.
Inspect the main differential case and side
gears for damage. Refer to TP-9955,
Failure Analysis for Drive Axle Components.
Yes
Damaged?
No
Inspect the drive pinion and inner drive pinion
bearing for damage. Refer to TP-9955,
Failure Analysis for Drive Axle Components.
Yes
Damaged?
No
Reassemble and install the main
differential. Refer to Section 4.
Reset the backlash.
Refer to Section 4.
Install a new
unitized seal.
Install the carrier. Refer to
Section 4. Test drive the vehicle.
Return the vehicle to service.
When the carrier is
reassembled later, set
the backlash to spec.
Refer to Section 4.
Repair the carrier
or install a
remanufactured
carrier. Refer
to Section 4.
Repair the carrier
or install a
remanufactured
carrier. Refer
to Section 4.
Repair the carrier
or install a
remanufactured
carrier. Refer
to Section 4.
Maintenance Manual MM-0230
Issued 07-02