TM 1-1520-238-23
3-74
3.20.
UPPER MAIN LANDING GEAR SHOCK STRUT EXTERNAL LEAKAGE REPAIR – continued
f. Service strut (1) with fluid (para 1.41).
g. Service strut (1) with nitrogen (para 1.40).
3.20.5. Check Valve Packing Replacement
a. Deflate strut (1) (para 3.18.3).
b. Remove check valve (8) from strut (1).
(1) Remove lockwire from valve (8).
(2) Remove tube cap (9) from strut (1).
(3) Remove valve (8) from fill port (10).
(4) Remove and discard packing (11).
c. Check cap (9), valve (8), and port (10) for dam-
age. None allowed.
d. Install valve (8) on strut (1).
(1) Lubricate new packing (11). Use hydraulic
fluid (item 93, App F).
(2) Install packing (11) on valve (8).
(3) Install valve (8) on port (10).
(4) Lockwire valve (8) to plug (12). Use wire
(item 224, App F).
(5) Install cap (9) on strut (1).
e. Inspect (QA).
f. Service strut with fluid (para 1.41).
g. Service strut with nitrogen (para 1.40).
h. Remove tripod jacks (para 1.66).
END OF TASK
M04-2331-4
10
1
8
11
9
10
1
8
11
9
12
M04-2331-5
