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SECTION
V
THE PIPER
CHEROKEE
times
thus
drawlng
fluid from
the
container
and
expelllngair
from
the
strut chamber. To
allow
fluid
to
enter the
botrom
chamber
of
the main gear
stnrt
housing, the torque
link
assem
-
bly
must
be
disconnected
to
let
the
strut
be
extended
a
minimum
of l0 inches,
(The
nose
gear torque
llnks
need
not
be
discon-
nected.)
Do
not
allow the
stmt
to
extend
more than
l2
inches.
When
air
bubbles cease
toflow
through
the
hose, compress
the
strut fully
and
againcheck
fluid
level
Reinstall
the
valve
core
and
filler
plug,
and
the
main gear torque
links
if
disconnected.
Wit
With
fluid in thestrut
housingat
thecorrect level,
artach
a
strut
pump
to the
air
valve
and
with
the
airplane
on
the ground,
inflate
the
oleo
strut
to
the
correct
heiglrt.
In jacking the
Cherokee
for
landing
gear
or
other service,
a
jack
kit (available
through
the
PiperAircreft Sewice
Depart -
ment) should be
used. This
kit
conslsts of two hydraulic jacks
and
a
tail
stand.
At
least
350
pounds
of
ballast
should be placed
on
the base of the
tail
stand
beforejacking
up
rheairplane.
The
hydraulic
jacks
should
be placed
under
the
jack points on
the
bottom
of the
wing
and
the
airpl,anejacked
up
until
the
tail
skid
is at
the
right
height
to
attach
the
tail
stand. After
attaching
the
tail stard,
and
adding
the
ballast,
rhe
jacking
may be con-
tinued
until
the
airplane
is
at the
height
desired.
FUEI
REQUIREMENTS
The
minimum aviation
grade
fuel for
åe
pA-28-f4O is
g0/87.
Since
the
use
of
low€r
grades
can
cause
serious engine
drmage
in
a
short
pcriod
of
time,
rhe engine warranEy
is invalidated
by
the
use
of
lowcr
oclanes.
Whcnoer
8O/E7
is
not
av&ilable, rhe
low6r
lcad
100
grade
should
be used. (Sec
Fuel
Grade Comparison
Chan,
next
page.)
Refer
to
the
Latest
issue
of
Lycoming Service
Insrnrcrion No.
1070
for
addirional
information,
The continuous
us€,
more than
Z1oh
of
thc
opcraring
time,
of
thc
higher leadcd
fuels
can
result
in
increased eogine deposits,
both in
the
combustion chamber and
in
the
engine
oil.
It
may require
increased
30
770527
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