a. Start engine and check for oil leaks at transmission filter cover and drain plug. Recheck
b. Inspect hull bottom access cover for damage (TM 9-2350-261-20).
c. Install hull bottom access cover (TM 9-2350-261-20).
d. Install driver's access panel (TM 9-2350-266-10).
Transmission oil must be flushed when changing oil grades.
Do not change transmission oil filter at this time.
9. TRANSMISSION OIL FLUSH PROCEDURE. Use the following procedure when changing oil
grade or when oil is contaminated:
a. Operate carrier until coolant reaches normal operation temperature.
b. Drain transmission oil.
c. Fill transmission with new grade oil.
d. Position range selector in 1-3 with engine idling for 5 to 6 minutes.
e. Drain oil and change transmission oil filter.
f. Fill transmission with new grade oil.
g. Check oil level.
10. FINAL DRIVES. Weekly, check oil in both final drives for level between ADD and FULL
marks on gauge rod. Add applicable OE/HDO or OEA, in accordance with Key, as required.
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