BELL HELICOPTER 430 Maintenance Manual page 87

5-22. PROGRESSIVE INSPECTION — EVENT 7 (CONT)
DATA REFERENCE
Chapter 64
Chapter 64
Chapter 64
SCHEDULED INSPECTIONS
INSPECTION TASK DESCRIPTION
21. Inspect tail rotor pitch control assembly as follows:
a. Check for excessive radial play between the pitch
control assembly and the tail rotor gearbox output shaft due to a
worn or debonded guide bearing. Radial play in excess of 0.018
inch (0.5080 mm) is considered excessive.
b. Check for worn areas on the tail rotor gearbox output
shaft wear sleeve.
c. Check for worn or rough crosshead bearing set.
d. Check for rough or worn counterweight bellcrank
bearings.
e. Check for worn inner race in the tail rotor idler
assembly.
f. Check for unbonded bearing in the upper leg of tail rotor
input lever assembly.
g. Check for worn bearings in the tail rotor pitch links.
22. Make sure that the tail rotor hub and blades are clean.
Examine the blades for damage. Examine the pitch change
bearings and trunnion bearings for looseness. Make sure the
pitch horns are correctly attached. (R2)
23. Make sure that the tail rotor hub and blade assembly
retaining nut has the correct torque. (R2)
MECH OTHER
26 JAN 2007 Rev. 15
BHT-430-MM-2
INITIAL
5-00-00
Page 57/58