TO 35-1-3 - Robins Air Force Base

TO 35-1-3
2.1.10 Preparation of SE for Cleaning. The cleaning
operation is recommended in planned steps to obtain satisfactory
results. In general, steps to be followed are as follows:
2.1.10.1 To protect against cleaning solution entrapment,
lubricate all fittings which will be exposed to wash solutions
in accordance with maintenance manuals or maintenance
cards.. If fittings do not accept lubrication, replace and lube
prior to wash.
2.1.10.2 Inspect the surface to be cleaned and refer to Table
2-2 to determine the type of cleaning compound and mixing
ratio of cleaning compound that should give the satisfactory
cleaning results. From the inspection, determine what areas
should be masked or protected.
2.1.10.3 Protect louvers, scoops and other natural entrapments
from the cleaning mixture by masking. Masking tape A-
A-883, and/or barrier paper, MIL-PRF-121, can be effectively
used for masking purposes.
2.1.10.4 The cleaning solution shall not be allowed to dry on
plastics, plate glass, and painted surfaces. The cleaning solution
shall not be applied to large areas that cannot be adequately
agitated and thoroughly rinsed before it dries. Streaks
and less effective cleaning will result if mixture dries on the
surface being cleaned.
2.1.10.5 Outside cleaning will be closely controlled or not
done during the warmest part of the day or on windy days, as
the cleaning solution will dry rapidly. Wetting the surface with
water before applying the cleaning solution will cool the surface
and help prevent fast drying in hot weather. Cleaning
shall be accomplished in shaded areas whenever possible during
hot weather (above 80 °F).
2.1.10.6 Apply the cleaning solution until the area to be
cleaned is completely covered.
2.1.10.7 Agitate the compound by scrubbing the surface with
a nonmetallic brush. Vigorous scrubbing action with a brush is
not usually required except in extremely soiled areas. Depending
on weather conditions, allow approximately five to ten
minutes from application of mixture before rinsing.
NOTE
Do not allow the cleaning mixture to dry on the
equipment before rinsing.
2.1.10.8 Thoroughly rinse mixture from the area being
cleaned by using large amounts of clean water. Heated water
(approximately 140 °F) will give best results.
NOTE
Water needed for thoroughly rinsing shall be readily
available at the surface being cleaned. Streaking
(white powder and surface dulling) will result if the
cleaning solution remains on the surface being
cleaned too long or dries.
2.1.10.9 If streaking appears, immediate reapplication of the
cleaning solution will usually reduce or eliminate this condition.
2.1.11 Cleaning of Engine Components and Enclosures.
Remove carbon from disassembled engine parts with
Specification SAE-AMS-C-19853 cleaning compound. Follow
material manufacturer's instructions on the use of this product.
This is a compound for removing or loosening carbon from
engine components by means of immersion at ambient temperatures
without agitation. This solution will remove many
standard paint finishes. This material shall be used in a tank
provided with a cover and in a well-ventilated area, although a
water seal is provided to reduce evaporation and loss of the
solvent. The water seal aids in pre-rinsing, reduces toxicity
somewhat, and absorbs a portion of the corroding type contamination
introduced when parts are being cleaned.
Carbon remover compound SAE-AMS-C-19853 contains
chemical compounds that are hazardous and
must be confined to tank use. Disposal of this compound
must be in accordance with state, local, and
federal requirements.
2.1.11.1 To prevent contamination of carbon remover solution,
remove all loose oil, grease and dirt from the parts with
solvent MIL-PRF-680, Type II or III, A-A-59601 or MIL-
PRF-32295, Type II.
2.1.11.2 Place parts in a mesh basket, or suspend by wire,
and immerse in the lower layer of the solution. Agitation or
excessive mixing of the two layers shall be avoided during
cleaning operations.
Change 9 2-15