6
Lubrication
Proper Transmission Lubrication Level
Make sure the transmission lubricant is level with the bottom of the fill open-
ing. Being able to reach the lubricant with your finger does not mean the lubri-
cant is at the proper level. (On heavy duty transmissions, one inch of lubricant
level equals about one gallon of lubricant.)
If the transmission operating angle is more than 12 degrees, improper lubrica-
tion can occur. The operating angle is the transmission mounting angle in the
chassis plus the grade (expressed in degrees).
Any time the transmission operating angle of 12 degrees is exceeded for an
extended period of time, the transmission must be equipped with an oil pump
or cooler kit to insure proper lubrication.
Lube Change Intervals
Lubricant changes should be based on a combination of the intervals shown
in TCMT-0021 Lubrication Specification MANUAL, and user judgement based
on the application and operating environment. Extending drain intervals
beyond those shown in the tables is not recommended and will put warranties
at risk.
Note:
The first lube change for a Line-Haul vehicle may be extended to
500,000 miles (800,000 km) when a new transmission has been factory
filled with a lube that is Eaton approved for 500,000 miles (800,000 km)
(E-500, PS-164).
Note:
Vocational service applications are those which require components to
be consistently operated at heavy loads, in contaminated environments
or on steep grades. For these applications, the Vocational Service sec-
tion should be used.
Proper Oil Level
Improper Oil Level
Summary of Contents for Roadranger TRDR0250
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