Piper Cherokee Six - Page 249

PIPER
CHEROKEE
SIX
SERVICE
MANUAL
TABLE
VA-IIl.
HYDRAULIC
SYSTEM
TROUBLESHOOTING
(cont.)
Trouble
Cause
Remedy
Landing
gear
fails
to
operate
at
required
speeds.
(Gear
up at
93 mph,
gear
down
at 118 mph.)
Friction
or
tight
connection
at
any
of
the
attachment
points
(pivot
points)
of
the
override
control
components.
Clean,
free and
lub-
ricate
all pivot
points.
Binding
of diaphragm
shaft
caused
by
build
up
of sand
or dirt.
Clean
all moving
parts.
Landing
gear
will
not
retract
after
select-
ing
up
at an
airspeed
above
actuator
speed.
(Also,
upon
trying
to
override
it is found
that
only
with
a
steady
pressure
can
the override
be
activ-
ated.
After
gear
does
retract
and
the
over-
ride lever
(manual
extruder)
is
relaxed
(approximately
11 to
15
seconds)
the gear
will
fall free.
Restriction
in pres-
sure
head of
gear
back-up extender
actuator.
Disconnect
hoses
at
back-up
extender
and
clean
out
hoses and
head.
HYDRAULIC
SYSTEM
Issued:
7/28/75
1K9