Section VIII GENERAL MAINTENANCE PROCEDURES (Continued)
1-77 CLEANING (Cont)
3. Compressor Wash (Cont)
Prepare 5 gallons of rinse solution (Refer to
TABLE 4 MIXING OF RINSE SOLUTION (BY
+ 36°F and
- 12°F to
Below - 12°F
Performance Recovery Motoring Wash
GROUND Engines shall be started
and operated only by authorized
Use of the correct mixture as specified
temperature is below freezing at the
time of washing, but also if the
temperature is expected to be low
between the time of washing and the
Do not motor engine for more than 30
seconds. Observe starter cooling
To prevent deposits caused by the use
of hard water, engine must be allowed
to cool to below 150° F. Minimum
cooling period of 40 minutes must be
allowed since the engine was last
Connect wand or wash ring to supply from
Fill wash tank with prepared solution
(Refer to subparagraph 3.c,).
Pressurize tank at 30 to 50 psi with air or
Disconnect P3 air line from FCU (Task
Insure that the ignition switch is OFF.
Insure that compressor bleed air is off or
Fuel boost pump ON.
Throttle lever at idle.
Shut off lever is in OFF position.
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