TM 55-2840-254-23
106.1
WASH COMPRESSOR (WITHOUT WATER WASH KIT
1-106
P/N 2-200-071-54 INSTALLED) (Continued)
NOTE
Engine water wash should be performed every 50
hours unless in extreme environmental conditions
such as desert-like high sand environments, within
200 miles of volcanic activity, or within ten miles
and 1000 ft agl of salt water environments. Under
those conditions, the engine water wash should be
performed every 25 hours.
NOTE
For best results on engine water wash
procedures, the engine should be washed twice
and rinsed three times. The second wash cycle
ensures that majority of the dirt and grime has
been removed from the engine. The third rinse
ensures that all of the cleaning solution has been
removed from the engine.
NOTE
Currently B & B 3100 (MIL-C-85704, Type I) is
the primary cleaner for Army turbine engines
and remains an approved cleaner for environ-
mental restrictions permit. Where environmental
restrictions preclude its use MIL-C-85704, Type
II and Type IIA should be used. Continue to use
B & B 3100 where not restricted. Approved
Type II and Type IIA cleaners shall be used in
accordance with the existing washing procedure;
however, they are less effective than Type I
cleaners; therefore, more frequent engine washes
may be required to achieve satisfactory results.
Type IIA cleaners do not require dilution with
water.
1. Disconnect protective plug (1) from water wash
system hose assembly (2).
CAUTION
Do not exceed 60 psi air pressure or damage
to bleed band actuator diaphragm may occur.
2. Connect air pressure hose (3) with air pressure
regulator and a source of 60 psig to water wash
system hose assembly (2).
3. Adjust air pressure on regulator to 60 psig
maximum to close compressor bleed band.
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