Piper CHEROKEE 180 Owner's Handbook Manual page 58

SECTION VI
CHEROKEE 180
Should fluid be
below
the
bottom
of the
filler
plug
hole, oil should
be
added.
Replace
the
plug
with valve core removed, attach a clear
plastic
hose
to the valve strut of the
filler plug
and submerge the other
end
in
a container
of
hydraulic
fluid (MIL-H-5606).
Fully
compress and
extend
the strut
several
times thus
drawing
fluid from
the container and
expelling air
from
the strut chamber.
To
allow the
fluid
to enter the
bottom
chamber
of
the
main
gear
strut housing,
the torque
link
assembly must
be disconnected
to
let
the strut
be
extended a minimum
of
10
inches.
(The
nose
gear
torque
links
need not
be
disconnected.)
Do
not
allow the
strut
to
extend more
than
12 inches. When
air
bubbles
cease
to flow
through the
hose, compress
the
strut
fully
and
again
check
fluid
level. Reinstall
the valve core
and
filler plug,
and
the
main
gear
torque
links, if disconnected.
With
fluid
in
the strut
housing
at the correct
level,
attach
a
strut
pump
to the air valve and with the airplane on
the
ground,
inflate
the
oleo strut to the correct
height.
In
jacking
the
Cherokee for landing gear
or other service, a
jack
kit
(available
through
Piper Dealers or Distributors) should be
used.
This
kit consists of
two
hydraulic
jacks
and
a tail stand.
At least 250 pounds
of ballast
should
be
placed
on
the
base
of the tail
stand
before
the
airplane
is
jacked
up.
The hydraulic
jacks
should
be
placed
under the
jack
points
on the
bottom
of the wing and the airplane
jacked
up until
the
tail
skid
is
at the right
height
to
attach
the tail
stand. After
attaching the tail stand and
adding
the
ballast,
the
jacking
may
be
continued
until the aircraft
is
at the
height desired.
The steering
arms
from
the
rudder
pedals
to
the
nose wheel are
adjusted at the rudder
pedals
or at the nose wheel
by
turning
in
or out
the threaded rod end
bearings.
Adjustment
is
normally
accomplished at
the
forward
end
of
the
rods and
should
be
done
in
such
a
way
that
the
nose
wheel
is
in
line with
the
fore
and aft axis of the
plane
when the
rudder
pedals and
rudder are
centered. Alignment
of the nose wheel
can
be checked by pushing
the airplane
back
and
forth
with the rudder
centered to
determine
that the
plane
follows
a
perfectly
straight
line.
The
turning
are of the nose wheel
is 22 degrees in
either
direction
and
factory
adjusted at stops on the
bottom
of the
forging.
The
turning
radius of the nose wheel
is
17
feet.
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