Section 9: Troubleshooting; Transfer Case Lubrication Diagnostics - Meritor MTC-4208X Series Service Manual

Troubleshooting

Transfer Case Lubrication Diagnostics

Remove the transfer case
from the vehicle and
disassemble.
Inspect parts for damage
and replace as needed.
Reassemble transfer
case.
Figure 9.1
Printed in USA
Clean the transfer
case and operate
the vehicle.
Inspect the transfer case
for housing damage and
joint seal leaks.
Damaged
Yes
or joint
leak?
1. Replace the breather.
2. Determine if the breather
is mounted in the correct
location. Call the Meritor
OnTrac™ Customer Call Center
at 866-OnTrac1 (668-7221)
for additional information.
Inspect seals
for leaks.
Continue to
next page.
Copyright Meritor, Inc., 2020
Inspect the breather
No
for clogging or oil
blowing out.
Yes
Breather
clogged?
No
Does oil
No
blow-out from
the breather?
Yes
1. Check the transfer case
oil level.
2. Check the transfer case
for air leaks.
9 Troubleshooting
Fill the transfer case
with the correct type
and amount of oil.
Road test the vehicle,
then check for leaks.
Return vehicle to service.
4001525b
MM-0861 / Revised July 2020
Page 91