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3.21.
MAIN LANDING GEAR SHOCK STRUT CYLINDER EXTERNAL LEAKAGE REPAIR – continued
3.21.3. Fluid Fill Coupling Packing Replacement
a. Remove fluid fill coupling (1) from shock strut
assembly (2).
(1) Remove lockwire from coupling (1).
(2) Remove cap (3) from coupling (1).
(3) Remove coupling (1) from kneeling port (4).
(4) Remove and discard packing (5).
b. Check coupling (1) and port (4) for damage.
None allowed.
c. Install coupling (1) in strut (2).
(1) Lubricate new packing (5). Use hydraulic fluid
(item 93, App F).
(2) Install packing (5) on coupling (1).
(3) Install coupling (1) in port (4).
(4) Lockwire coupling (1) to plug (6). Use wire
(item 224, App F).
(5) Install cap (3) on coupling (1).
d. Inspect (QA).
e. Service strut with fluid (para 1.41).
f. Service strut with nitrogen (para 1.40).
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