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Lubrication & Maintenance
Hazard Alert Messages
Read and observe all Warning and Caution hazard alert messages in
this publication. They provide information that can help prevent serious
personal injury, damage to components, or both.
WARNING
TO PREVENT EYE INJURY, ALWAYS WEAR EYE PROTECTION
WHEN PERFORMING VEHICLE MAINTENANCE OR SERVICE.
How to Obtain Additional Maintenance,
Service, and Product Information
For complete lubrication information for Meritor's transfer cases, refer
to Maintenance Manual 1 - Preventive Maintenance and Lubrication. To
obtain a copy of this publication or access it on Meritor's website, refer
to the Service Notes page on the inside front cover of this manual.
Lubricant Temperatures
Meritor MTC-4208, MTC-4210, & MTC-4213 Series
Transfer Cases
CAUTION
Meritor MTC-4208, MTC-4210, and MTC-4213 Series transfer cases
may operate with an oil temperature above 300°F (148°C). Howev-
er, if the oil temperature reaches 350°F (177°C), stop the vehicle
immediately. Check for the cause of overheating to prevent damage to
components.
Meritor MTC-4208, MTC-4210 and MTC-4213 Series transfer cases
may operate with an oil temperature above 300°F (148°C). However, if
the oil temperature reaches 350°F (177°C), stop the vehicle immedi-
ately and check for the cause of overheating. Oil temperatures at this
range should only occur in linehaul or utility applications that operate
under high speed for long periods of time.
Printed in USA
Do Not Install API GL-5 Oils
CAUTION
MERITOR DOES NOT APPROVE PETROLEUM-BASED AND
MULTI-VISCOSITY OIL. NEVER INSTALL API GL-5 OILS,
WHICH CONTAIN EXTREME-PRESSURE (EP) ADDITIVES.
THESE ADDITIVES CAN FORM SLUDGE AT NORMAL
OPERATING TEMPERATURES. DAMAGE TO COMPONENTS
CAN RESULT. USE ONLY SAE GRADE FULL-SYNTHETIC
40W OR 50W OIL, MERITOR SPECIFICATION O-81, IN THE
TRANSFER CASE. USE ONLY SAE GRADE FULL-SYNTHETIC
40W OR 50W OIL, MERITOR SPECIFICATION O-81, IN THE
TRANSFER CASE.
NEVER install API GL-5 oils in a transfer case. This specifi cation con-
tains extreme pressure (EP) additives that can form sludge at normal
operating temperatures and damage transfer case components.
Petroleum-Base and Multi-Viscosity Oils
Meritor does not approve the use of petroleum-base and multi-viscosi-
ty motor oils. Refer to Maintenance Manual 1 - Preventive Maintenance
and Lubrication; or TP-90114 - Transmission Lubricant Specifi cations
for a list of approved oils.
Meritor does approve the use of synthetic-base oils.
Operating Information
Magnets and Magnetic Drain Plugs
Most Meritor transfer cases are equipped with magnetic drain plugs
with a minimum pick-up capacity of 20 ounces (0.57 kg) of low carbon
steel. Reinstall the magnetic drain plug each time the oil is changed.
Use the correct part. If a pipe plug is used instead of a drain plug, the
pipe plug will leak.
Drain plugs can be reused if it has a minimum pick-up capacity of 20
ounces (0.57 kg) of low carbon steel after it has been cleaned.
Copyright Meritor, Inc., 2020
10
Lubrication & Maintenance
MM-0861 / Revised July 2020
Page 97
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