2-4. Compressor Cleaning to Restore Lost Performance. This paragraph contain cleaning instructions for the
compressor. Use care in separating metals for cleaning. Observe the following general cleaning precautions.
B&B 3100 (MIL-C-85704,Type I) is the primary-
cleaner for Army turbine engines and remains an ap-
proved cleaner for locales where environmental re-
strictions permit. Egine cleaners that conform to
MIL-C-85704, Type II and Type IIA are also accept-
able engine cleaners and meet EPA environmental
requirements. continue use B&B 3100 where not
restricted. Where restrictions apply use
MIL-C-85704, Type II and Type IIA cleaners. Ap
proved Type II andType IIA cleaners shall be used in
accordance with the existing washing procedure. Type
IIA cleaners do not require dilution with water. Both
types of cleaners are less effective than Type I clean-
ers. Therefore more frequent engine washes maybe
required to achieve Satisfactory results.
Drycleaning solvent/P-D-680, used to clean parts
is potentially dangerous to personnel and property.
Avoid repeated and prolonged skin contact. Avoid
prolonged or repeated breathing of vapors. Do not
use near open flame or excessive heat. Flash point
of solvent is 100oF-138oF(38oC-59oC).
Petroleum solvent (item 1, Appendix D) is the cleaning solvent recommended for nonferrous parts.
Cleaners for stel will damage nonferous parts. Do
not use rust preventives on magnesium and alumi-
Clean aluminum-coated steel parts with carbon removal compound (item 22, Appendix D). Rinse the part with wa-
ter and dry with an air blast.
Clean steel parts with cresol base cleaning compound (item 23, Appendix D). Rinse the part thoroughly with hot
water. Coat parts with a compound of one part rust preventive (item 24, Appendix D) and three parts oil (item 25, Ap-
Methanol (item 47, Appendix D)
Water Soluble Cleaner (item 26. Appendix D)
Antiseize Compound (item 6, Appendix D)
Compressor Protector Kit, Tool No. 6798861
Lockwire (item 17, Appendix D)
Type II and Type IIA Cleaners (items 55.56.57.
58, Appendix D)
Allow the engine to cool for a minimum
of 45 minutes prior to spraying the
compressor. Mandatory cooling period
is required to prevent warpage to inter-
nal engine components.