TM 1-1520-238-23
6-434
Change 4
6.98.
MAIN ROTOR MAST SUPPORT BASE SPACER PLATE REMOVAL/INSTALLATION – continued
6.98.3. Removal
a. Clean fillet sealant from base of spacer plate
(1) at support base (2) (para 1.47). Use methyl
ethyl ketone (item 124, App F).
CAUTION
Do not damage support base when re-
moving support plate.
b. Remove spacer plate (1) from support base
(2). Use putty knife.
6.98.4. Cleaning
a. Clean support base and spacer plate (para
1.47). Use methyl ethyl ketone (item 124, App F).
6.98.5. Inspection
a. Check base for cracks. None allowed.
b. Check support base for corrosion (para 1.49).
(1) Repair by blending and refinishing corrosion
damage up to 0.025 INCH deep. Use depth
gage.
c. Check spacer plate for corrosion (para 1.49).
(1) Repair by blending and refinishing corrosion
damage up to 0.015 INCH deep. Use depth
gage.
d. Check bolts for damaged or worn threads.
None allowed.
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M04-3540-1
