Textron Bell 412, Руководство по обслуживанию

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BHT-412-MM-2
5-00-00
Page 76
Rev. 16 26 FEB 2013 Export Classification C, ECCN EAR99
g. Functionally check droop restraint system. Check for
engagement of restraint arms in lower detent of cam window.
Relieve load on each blade and verify lower clevis moves freely
through cam window envelope. Binding and roughness in
inboard clevis is not acceptable.
Chapter 62 7. Main rotor controls:
a. Visually inspect swashplate and support assembly, and
collective lever for condition and security.
b. Visually inspect hub and sleeve assembly for condition
and security.
NOTE
Use swashplate link and drive link bearings —
workaid (Chapter 62) to assist with determining
condition of main rotor control bearings.
c. Visually inspect drive hub and rephasing levers for
bearing looseness and security of attachment.
d. Visually inspect pitch links for condition, security, and
bearing looseness.
8. Every fourth 25 Hour/30 Day Inspection:
NOTE
Disconnect pitch link upper rod ends from the pitch
horns to determine main rotor control bearing wear.
a. Inspect swashplate and support assembly for condition
and security with special attention to gimbal ring attachment
lugs.
NOTE
The presence of black oxide powder will require
investigation to determine the cause.
SCHEDULED INSPECTIONS
5-9. 25 HOUR/30 DAY INSPECTION — PART B (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER