TM55-2840-251-23
SECTION VIII GENERAL MAINTENANCE PROCEDURES (Continued)
1-76
DISASSEMBLY (Cont)
7.
Use only a plastic or rawhide hammer when
removing engine parts. Cover critical engine parts or
areas, e. g. compressor or turbine disks, with
protective material to safeguard them from scratches,
nicks or tool marks.
8.
Penetrating oil (E. 7) may be used to facilitate
removal of turbines and other hot section parts.
CAUTION
Never mark engine parts with a lead
pencil. Such deposits can cause
corrosion and burn-out of parts. Do
not use either the electrolytic-etch or
electric-arc scribe methods to mark
engine parts.
9.
For temporary marking of parts, the following
materials may be used.
a.
Feltwick Pen (E. 24) and Speedry Instant
Dry Ink (E. 25)
b.
Cado Marker (E. 26)
c.
Brushpen No. 57 (E. 27) and Tex Rite
Instant Dry Ink (E. 28):
400-1 (Black)
400-2 (Red)
400-7 (Purple)
d.
Micro Supreme No. 142 Purple Dye (E. 29)
e.
Phano No. 71 Red Pencil (E. 30) f.
Colorbrite Silver No.
2101 Pencil (E. 31)
g.
Marks-A-Lot (E. 73).
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