Adding Fluid To Struts; Filling Oleo Struts - Piper APACHE PA-23-235 Service Manual

NOTE
Struts may be serviced per placard on strut.
2-54. ADDING FLUID TO STRUTS. To add fluid to an oleo strut which is partly
full, proceed as follows:
a. Place the airplane on jacks.
(Refer to Jacking, Paragraph 2-12.)
b. Place a pan under the gear to catch spillage.
c. Release the air in the oleo strut by pressing in on the air valve core pin.
d. Remove the air valve (filler plug). Allow valve core to remain in valve.
e.
Extend the strut to two inches from the fully compressed
position and fill
the strut through the filler opening with fluid as specified.
f.
Slowly compress the strut to the fully compressed position allowing fluid
to overflow.
g. With oleo strut in the compressed position, reinstall air valve and safety.
h. Inflate the oleo struts with air to the required extension per instructions in
paragraph 2-56.
2-55. FILLING OLEO STRUTS. To fill an oleo strut which has been completely
emptied because of repair,
leakge, etc., proceed as follows:
a. Place the airplane on jacks.
(Refer to Jacking, Paragraph 2-12.)
b. Place a pan under the gear to catch spillage.
c. Remove valve core from air valve.
d. Attach a clear plastic tube to the valve stem and place the other end of the
tube in a container of hydraulic fluid as specified.
NOTE
An air-tight connection is necessary between the plas-
tic tube and valve stem. Without such a connection, a
small amount of air will be sucked into the oleo strut
during each sequence, resulting in an inordinate amount
of air bubbles and a prolonged filling operation.
e. Extend the oleo strut by pulling down on the wheel. Fluid will be sucked
into the oleo strut.
Compress and extend the oleo strut until it is full of fluid,
and air bubbles cease to appear in the plastic tube.
f.
Compress the oleo strut to within 1/4 inch of full compression, allowing the
excess fluid to overflow.
Reinstall the valve core.
g. Remove the airplane from the jacks.
h. Inflate the oleo struts per instructions given in paragraph 2-56.
HANDLING AND SERVICING
Reissued: 2/18/81
1D20
*PIPER AZTEC SERVICE MANUAL