246 Change 7
END OF TASK
212 REPAIR COMPRESSOR BLEED BAND
Technical Inspection Tool Kit.
Hand File Set
Carborundum Stone (E 11)
Crocus Cloth (E16)
Isopropyl Alcohol (E69)
FluorescentPenetrant Materials (E73),
68B10 Aircraft Powerplant Repairer
68B30 Aircraft Powerplant Inspector
Off Engine Task
The bleed band is very thin and bends
easily. Be careful not to kink or bend it
during handling. If kinked or bent,
bleed band must be replaced.
1. Repair edge wear up to 0.100 inch deep, on
bleed band (1) as follows:
Repair is allowed only if depth after repair
is not more than 0.100 inch.
Blendrepair to a smooth contour using
carborundum stone (E11).
Remove burrs around repair from both
sides of band. Use file.
Final polish area with crocus cloth (E16).
Fluorescentpenetrant Inspect per para-
graph 212.1.3, repaired area (Ref. TM
Parts requiring fluorescent penetrant in-
spection shall be cleaned using perchloroe-
thylene (item E68, appendix C) to remove
surface contamination. Parts must be visi-
bly dry prior to application of penetrant. To
facilitate drying, parts may be wiped with
isopropyl alcohol (item E69, appendix C)
or dried with air circulation at 130 F for a
minimum of five minutes.