TM 1-1520-238-23
3-117
3.33.
TAIL LANDING GEAR ACTUATING CYLINDER SPRING REPLACEMENT (AVIM) – continued
3.33.7. Testing
WARNING
The hydraulic test stand operates un-
der high fluid pressure. During opera-
tion of the hydraulic test stand,
operating instructions must be strictly
followed. Failure to follow operating
instructions could result in injury to
personnel. If injury occurs, seek medi-
cal aid.
a. Install hydraulic test stand to cylinder.
b. Apply 4400 to 4600 psi for 3 MINUTES.
c. Check for leakage (QA). None allowed.
d. Inspect for cylinder deformation. None al-
lowed.
e. Cycle pressure 25 times.
(1) Increase pressure from 0 to between 2900
and 3100 psi during each cycle.
(2) Fuse pin should be fully exposed at zero psi.
f. Check for leakage at both ends (QA). One drop
allowed at each end during 25 cycles.
g. Remove hydraulic test stand from cylinder.
END OF TASK
FUSE PIN
HYDRAULIC
PRESSURE LINE
M04-2349-7
