Section 5: Diagnostics; Vehicle Will Not Move - Meritor MS-113 Maintenance Manual

Vehicle Will Not Move

Section 5 Diagnostics
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
case 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.
Maintenance Manual MM-0230
Issued 07-02
When the carrier is
reassembled later,
Remove the
set the backlash to
carrier from the
the recorded reading.
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 No
Backlash
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.
Section 5
Diagnostics
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.
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