TM 1-1520-238-23
3-140
3.39.
TAIL LANDING GEAR SHOCK STRUT PISTON REMOVAL/INSTALLATION (AVIM) – continued
s. Inspect (QA).
t. Clean strut (para 1.47).
3.39.8. Leak Check
a. Apply 300 psi nitrogen pressure to strut (7).
Use nitrogen truck.
b. Wait 1 HOUR.
c. Check for nitrogen leaks. Use leak test
compound (item 109, App F).
d. Check for hydraulic leaks. None allowed.
e. Inspect (QA).
f. Release nitrogen pressure.
(1) Remove nitrogen truck from strut (7).
(2) Slowly turn nut (4) one turn counterclockwise.
(3) After pressure has been released, turn nut (4)
clockwise to close valve.
g. Install cap (3) on nut (4).
END OF TASK
3
4
7
M04-2326-11
