aEECHCRAFT
Duchess
76
section
VIII
.Handling,
serv
and
Malnt
4.
Cycle the strut (full extension to compressed) and refill
as described
in
step
"3".
Repeat until fluid cannot
be
added
to
the strut in the compressed position.
NOTE
Cycling of the shock strut is necessary to expel
any trapped air within the strut housing.
5. Install the air valve assembly.
6. With the airplane on jacks, inflate the nose gear strut
with dry air
or
nitrogen to 250 psi and the main gear strut to
300 psi; or, with the airplane resting
on
the ground and the
fuel tanks full, inflate the nose gear strut until four and one-
fourth inches of the piston is exposed, and main gear strut
until two inches of the piston
is
exposed. Rock the airplane
gently to prevent possible binding of the piston in the barrel
while inflating with the airplane on the ground.
NOTE
The preferred method of inflation is with the air-
plane on jacks and set the pressure rather than
trying to set the strut extension. It
is
recommend-
ed
that the nose strut inflation dimension and the
tire inflation pressure be carefully adhered to.
Properly inflated tires and struts reduce the pos-
sibility of ground damage occuring to the propel-
lers. Excercise caution when taxiing over rough
surfaces.
January
1978
8-19
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