LO-5-5420-202-13
M48A5 TANK CHASSIS AND M60A1 TANK CHASSIS
LUBRICATION ORDER
JANUARY 2011
LO-5-5420-202-13 - Page 10 of 28
LO 5-5420-202-13
Card 10 of 22
NOTES:
WARNING
FRH fluid may cause irritation to the eyes and skin. Avoid contact with
eyes, skin, and clothing. Wear protective goggles, gloves, and
clothing.
If FRH fluid comes in contact with eyes or skin, flush the
area with water. Failure to comply may result in injury or illness to
personnel.
6.
RESERVOIR DRAIN AND FILL.
a)
Routine samples of FRH fluid must be submitted to an assigned AOAP laboratory
every 25 hours of operation or 30 days, whichever occurs first, in accordance with
DA PAM 738-750. FRH fluid will be analyzed for condition and will be changed
only when directed by the AOAP laboratory. After refilling reservoir, operate
hydraulic system for 5 minutes. Bleed, if necessary.
b)
In the event AOAP laboratory support is not available, drain FRH fluid annually or
every 3,000 miles, whichever occurs first.
7.
AOAP. Oil samples from both engine and transmission must be submitted to an assigned
AOAP laboratory every 25 hours of operation or 60 days, whichever occurs first, in
accordance with DA PAM 738-750. Oil will be analyzed for condition and will be changed
only when directed by the AOAP laboratory. In the event AOAP laboratory support is not
available, drain oil every 1500 miles or semiannually, whichever occurs first. Semiannual oil
changes are to be coordinated with seasonal changes. When using OEA oil, drain every
750 miles or quarterly, whichever occurs first.
8.
Drain oil only after operation while oil is warm. To drain engine, remove engine drain plug
access cover from bottom of hull and remove drain plug and gasket. Remove vent bolt and
sealing washer (on oil filter cover) and loosen filter housing drain valve 3/4-inch hex nut
(below filter cover) six turns. After draining, clean and install drain plug, new gasket and
access cover. Remove cover and filter elements from filter housing, clean housing, install
new filter elements, and reinstall housing cover with new gasket. Torque 3/4-inch hex nut to
150 lb-in (17 N•m) (do not overtighten). Install vent bolt and new sealing washer. Refill
crankcase with 17 gallons (64.4 L) of seasonal grade oil, start engine, and follow checking
procedures in Note 2.
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