TM 55-2840-241-23
Figure 7-1. Compressor Bleed Valve Jet and Nozzle Removal
a. Use only clean water for rinsing solution.
b. Block the compressor bleed valve in the closed
position using the compessor cleaning kit, tool no.
6886204. It is not necessary to remove any lines.
7-5. Cleaning Compressor Case Half.
Do not immerse the compressor case half in
liquid cleaning solvents. Damage to the
compressor plastic lining could result.
a. Place the compressor case half on end and spray
with solvent (item 3. table 2-2). Blow dry immediately
with clean, compressed air.
NOTE
B&B 3100 (MIL-C-85704, Type I) is the pri-
mary cleaner for Army turbine engines and re-
mains an approved cleaner for locales where
environmental restrictions permit. Engine
cleaners that conform to MIL-C-85704, Type
II and Type IIA are also acceptable engine
cleaners and meet EPA environmental require-
ments. Continue use of B & B 3100 where not
restricted. Where restrictions apply use
MIL-C-85704, Type II and Type IIA cleaners.
Approved Type II and Type IIA cleaners shall
be used in accordance with the existing wash-
ing procedure, Type IIA cleaners do not require
dilution with water. Both types of cleaners are
less effective than Type I cleaners. Therefore
more frequent engine washes may be required
to achieve satisfactory results.
b. If there is any contamination remaining on the
vanes, clean with a tooth brush and a solution consisting
of one part cleaning compound (items 39,40,41,42,
table 2-2) to four parts clean water (distilled if avail-
able). Flush with clean water and blow dry immediately
with clean compressed air.
7-6. Cleaning Compressor Rotor Blades.
NOTE
B&B 3100 (MIL-C-85704, Type I) is the pri-
mary cleaner for Army turbine engines and re-
mains an approved cleaner for locales where
environmental Restrictions permit. Engine
cleaners that conform to MIL-C-85704, Type
II and Type IIA are also acceptable engine
cleaners and meet EPA environmental require-
ments. Continue use of B & B 3100 where not
restricted where restrictions apply use
MIL-C-85704, Type II and Type 11A cleaners.
Approved Type II and Type IIA cleaners shall
be used in accordance with the existing wash-
Change 17
7-3
