TM 55-2840-254-23
CHECK FOR SEAL LEAKAGE (NO. 4 AND 5 BEARING) (AVIM) (CONTINUED) 1-88
1-88
Lockwire nut (3). Use lockwire (E29).
o.
INSPECT
p. Remove No. 4 and 5 bearing package
seals (Ref. Task 4-37)
q. Remove No. 4 and 5 bearing oil tubes (Ref.
Task 441).
r. Clean No. 4 and 5 bearing oil tubes (Ref.
Task 442).
s. inspect No. 4 and 5 bearing oil tubes (Ref.
Task 443).
t. Install No. 4 and 5 bearing oil tubes (Ref.
Task 444).
u. Clean No. 4 and 5 bearing package (Ref.
Task 4-38).
v. Inspect No. 4 and 5 bearing package (Ref.
Task 4-39).
w. Install No. 4 and 5 bearing package seals
(Ref. Task 4-40).
x. Repeat steps 1 thru 21. If both readings
are still below 18 inches Hg., replace pow-
er turbine (Ref. Tasks 3-6 and 3-7).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
