TM 1-1520-238-23
6-403
6.91.
MAIN ROTOR AIR DATA SYSTEM (ADS) MAST REPAIR (AVIM) – continued
g. Remove bearings (29) and spacer (30) from
housing (22).
(1) Remove lockring (31) from housing (22).
(2) Remove bearing (29), spacer (30), and bear-
ing (29).
6.91.4. Cleaning
a. Wipe mast components with a clean rag.
6.91.5. Inspection
a. Check mast components for cracks. None al-
lowed.
b. Check mast components for corrosion (para
1.49).
c. Check ADS resilient mount for tears.
(1) Determine if damage extends through mount
or tear exists. Use gap setting gage.
(2) Replace mount if tear extends through mount
and 45 degrees around circumference.
(3) Check resilient mount at 125 HOUR intervals
if tear is less than above limits.
GO TO NEXT PAGE
M04-2985-5
31
29
30
29
22
