TM 55-1520-240-23-4
5-52
CENTRIFUGAL DROOP STOP FUNCTIONAL CHECK
(Continued)
5-52
Epoxy primer (E292.1) and
polyurethane paint (E285.1) are
flammable and toxic. They can irritate
skin and cause burns. Use only in
well-ventilated area, away from heat
and open flame. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
d.
Apply one coat of epoxy primer (E292.1).
Wear gloves (E184.1). Use tape (E388) to
protect other components.
e.
Apply two more coats of epoxy primer
(E292.1). Allow 1 hour between coats. Wear
gloves (E184.1).
f.
Apply two coats of black polyurethane paint
(E285.1) per Task 2-350.1. Allow 1 hour
between coats. Wear gloves (E184.1).
7.3.
Install centrifugal droop stop assembly (Task
5-55).
8.
Check for clearance as in step 6. If a crack is
suspected, refer to TM 1-1520-253-23.
Do not lower rotary-wing blade without
warning personnel working on droop
stops. Personnel can be injured if
blade is lowered suddenly.
9.
Return balancing arm (7) slowly until it rests
against hub (11). Have helpers lower blade (1)
slowly until fixed droop stop (4) rests against
interposer block (6).
FOLLOW-ON MAINTENANCE:
Install droop stop shroud (Task 5-48.5).
Close aft pylon work platforms (Task 2-2).
END OF TASK
5-237
