Forward Tandem Carrier
Vehicle Will Not Move
TP-99125
16579/24240 Issued 12-99
Printed in the USA © Copyright Meritor Automotive, Inc., 1999 Page 3
Backlash
within spec?
Yes
No
When the carrier is
reassembled later,
set the backlash
to the recorded
reading.
When the carrier is
reassembled later,
set the backlash
to spec. Refer to
MM 5L.
Damaged
?
No
Yes
Disassemble the
main differential.
Refer to MM 5L.
Damaged?
Yes
No
Damaged
?
Yes
No
Reset the backlash.
Refer to MM 5L.
Install a new
unitized seal.
This flowchart continues
from the previous page.
Install the carrier.
Refer to MM 5L.
Test drive the vehicle.
Return the vehicle to service.
Remove the main
differential and
ring gear from
the carrier.
Refer to MM 5L.
Inspect the main differential
bearings for damage. Refer
to TP-9955,
Failure Analysis
for Drive Axle Components
.
Repair the carrier
or install a
remanufactured
carrier.
Refer to MM 5L.
Inspect the main
differential case, side gears
and spider for damage.
Refer to TP-9955,
Failure Analysis for Drive
Axle Components
.
Repair the carrier
or install a
remanufactured
carrier.
Refer to MM 5L.
Inspect the drive pinion,
inner drive pinion bearing
and spigot bearing for damage.
Refer to TP-9955,
Failure
Analysis for Drive
Axle Components
.
Repair the carrier
or install a
remanufactured
carrier.
Refer to MM 5L.
Reassemble and
install the main
differential.
Refer to MM 5L.
If damaged, repair the
input shaft, inter-axle
differential, side gears or
bearings. Install the input
shaft. Refer to MM 5L.
Set the input
shaft end play to
the correct
specification.
Refer to MM 5L.