TM 1-1500-204-23-5
d. Oil Screens. Oil screens will be immersed in
drycleaning solvent, Federal Specification P-D-680, Type
II, and washed with a soft bristled brush. Blow out
residual dirt and fluid with light air blast directed into
inside of screen. When heavy carbon deposits adhere to
screen, immerse screen in stabilized degreasing fluid,
trichlorethylene, Federal Specification O-T-634, at room
temperature. Dry with light air blast.
CAUTION
Do not use a hard edged or pointed tool
to scrape or pick at screen. Compressed
air shall not be used for cleaning
purposes except if reduced to less than
30 psi and then only with effective chip-
guarding
and
personal
protective
equipment.
e. Valves. Replace oil cooler regulator valves
when system is contaminated with metal particles. All
other oil system valves will be removed, cleaned with
drycleaning solvent, Federal Specification P-D-680, and
reinstalled.
f. Oil Pumps. Clean oil pumps with specified
operating oil.
g. Oil Coolers. Flush oil coolers with specified
operating oil.
h. Clutches. Wipe with a clean cloth.
i. Freewheeling Units. Clean with drycleaning
solvent, Federal Specification P-D-680, and apply a light
coat of specified operating oil.
j. Engine Cooling Fans. Clean fans with a cloth
dampened in drycleaning solvent, Federal Specification
P-D-680.
k. Rotor Brakes. Wipe with a clean cloth.
l. Drive Shafting. Wipe with a clean cloth
dampened in drycleaning solvent, Federal Specification
P-D-680.
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