10 July 1990
(Supersedes LO 9-2350-261-12, JuIy 1985)
d. Operate transmission in 1-3 range with
engine idling for 5-6 minutes.
e. Clean and install drain plug in the
e. Drain oil and change transmission oil
f. Remove element, clean cavity with dry
cleaning solvent (PD-680, Type II) and
f. Fill transmission with new grade oil.
install new element. After filling trans-
g. Check oil level.
mission, check for oil leaks at filter with
10. FINAL DRIVES. Weekly (W), check oil in
both final drives for level between ADD
g. Fill transmission with approximately 16
and FULL marks on gage rod. Add
quarts (refill capacity) of OE/HDO or
applicable OE/HDO or OEA, in accor-
OEA (Card 15) to bring level between
dance with Temperature Key Chart, as
FULL and ADD marks on gage rod.
8. OPERATIONAL CHECK.
a. Start engine (TM 9-2350-261-10) and
check for oil leaks at transmission filter
Drain only when hot after operation.
cover and drain plug. Recheck oil level.
11. FINAL DRIVE OIL DRAIN. Drain final
b. Inspect hull bottom access cover, and
drives every 1500 miles, or semiannually.
a. Place suitable container under final
c. Install the bottom access cover
b. Remove drain plugs from final drive
housing and drain oil into container
d. Install the driver's access panel
c. Inspect drain plugs and oil for metallic
9. TRANSMISSION OIL FLUSH PROCE-
particles. If metal chips are found, noti-
DURE. Use the following procedure when
fy direct support maintenance.
changing oil grade or when oil is contami-
e. Fill each final drive with OE/HDO or
OEA, as applicable, adding proper
Transmission oil must be flushed when
amount to bring level between FULL
changing oil grades.
and ADD marks on gage rod. Each final
a. Operate carrier until coolant reaches
drive takes approximately 3-1/2 quarts.
normal operating temperature.
Do not substitute hydraulic fluid for
Do not change transmission oil filter at
OE/HDO or OEA. Red dye has been add-
ed to some final drives to help detect
b. Drain transmission oil.
c. Fill transmission with new grade oil.
CARD 17 of 32