TM 1-1520-238-23
Change 1
2-307
2.88.
ROTOR SUPPORT MAST SUPPORT BASE REMOVAL/INSTALLATION – continued
e. Check lightening holes for corrosion (para
1.49). Use flashlight and mirror.
f. Check lightening holes for pitting. If pitting is
observed, use impression material (item 95,
App F). Use flashlight and mirror.
NOTE
The following instructions on the use
of impression material supercedes in-
structions provided by the manufactur-
er as labeled on the containers.
Do not use the same scoop to remove
putty and catalyst since contamination
will result in impression material
(item 95, App F) hardening. Use red
scoop for putty and white scoop for
catalyst.
Combine equal parts of putty and cata-
lyst.
(1) Triangular cavities:
(a) Use four scoops of red putty with four
scoops of white catalyst.
(b) Mix the two components by hand using
fingers and roll in palms until a uniform
dull red is formed. 1 MINUTE is required
to mix the components.
(c) Form into a 4.50 INCH long roll.
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M04-3086-13
LIGHTENING HOLES
LIGHTENING HOLES
