TM 55-1520-240-23-1
1-72
SERVICE AFT LANDING GEAR SHOCK STRUT (AIR)
(Continued)
1-72
DEFLATE STRUTS
High pressure air trapped under valve
cap can be a hazard. If cap is not
removed slowly, air can pop it off and
cause injury.
NOTE
Left and right aft strut must be
serviced together. Perform steps 1
thru 3 on each gear at same time.
One repairer works on each strut.
1.
Loosen cap (1) slowly. Remove it from valve (2).
NOTE
Reach cap on left strut through open
ramp.
2.
Hold body of valve (2) with wrench. Turn outer
valve nut (3) to left one or two turns to release
air.
NOTE
If hydraulic fluid is found in air
chamber, replace the strut.
3.
Rock helicopter from side to side as air is
released. This makes sure piston (4) is fully
compressed.
NOTE
A completely deflated strut will still
have 1 inch of piston showing.
1-273
