ENGINE COMPRESSOR CLEANING
Methanol (E243) is flammable and
toxic. Use only with adequate
ventilation. Keep away from heat,
sparks, or open flame. Do not inhale.
Do not contact eyes, skin, or clothing.
In case of contact, immediately flush
skin or eyes with water for at least
15 minutes. Get medical attention
Dry cleaning solvent (E162) is
combustible and toxic. Avoid contact
eyes, skin, or clothing. Avoid inhaling.
Use only with adequate ventilation,
away from heat open flame. In case
of contact, immediately flush skin
or eyes with water for at least 15
minutes. Get medical attention for
At an ambient temperature below 35ºF
(2ºC), use a 40 percent methanol
(E243), and 60 percent water mixture
in lieu of fresh water. This will prevent
If water soluble cleaners (E466 or
E467) and dry cleaning solvent (E162)
are not available, go to Task 4-145.
Procedure is the same for both No.
1 and No. 2 engine. No. 1 engine
Position portable cleaning and preservation unit
(1) (T-26) within 30 feet of aircraft.
Install portable cleaning unit hoses (12) on
fittings (2 and 3) and on aircraft fittings (4 and 5).
Allow engine to cool for a minimum
of 45 minutes prior to cleaning
engine compressor. Cooling period
is mandatory to prevent warpage of
Start portable cleaning and preservation unit (1).
(Refer to vendor manual.)