TM 55-1520-240-23-7
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REPLACE AIRSPEED INDICATOR RESTRICTOR
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INITIAL SETUP
Applicable Configurations:
All
Tools:
Electrical Repairer’s Tool Kit, NSN 5180-00-323-4915
Materials:
Cloth (E120)
Gloves (E186)
Antiseize Thread Compound (E76)
Personnel Required:
Aircraft Electrician
Inspector
References:
TM 55-1520-240-23P
Equipment Condition:
Off Helicopter Task
NOTE
Be careful when handling the airspeed
indicator. Rough handling will damage
indicator.
1.
Remove restrictor (1) from P port of airspeed
indicator (2).
Antiseize compound (E76) is
extremely toxic. It can irritate skin
and cause burns. Avoid inhaling. Use
only with adequate ventilation. Avoid
contact with skin, eyes, or clothing.
In case of contact, immediately flush
skin or eyes with water for at least
15 minutes. Get medical attention
for eyes.
2.
Apply antiseize (E76) to pipe thread end of
restrictor (1). Use gloves (E186).
3.
Install restrictor (1) in P port of airspeed indicator
(2).
INSPECT
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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