TM55-2840-251-23
SECTION VIII GENERAL MAINTENANCE PROCEDURES (Continued)
1-71
SERVICING (Cont)
CAUTION
Do not mix oil of different military
specifications, since the chemical
structure
of
different
brands
or
specifications of synthetic oil may
differ
sufficiently
to
make
them
incompatible with each other. Should
both types of oil become mixed, drain
and flush oil system (subparagraphs 2
and 3) and refill with oil.
b.
Refill with Lubricating Oil (E. 2) or (E. 71)
one quart below maximum level. Overfilling may cause
a discharge of oil through accessory gearbox breather
until a satisfactory level is reached.
c.
Check oil filler cap and dipstick for condition
and locking features. Install new preformed packing (2)
on filler cap (1) and install assembly in accessory
gearbox.
d.
Check for and remedy any oil leaks.
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