Piper PA-32RT-300T User Manual

LANCE
II
SERVICE
MANUAL
Each
landing
gear
is retracted
and
extended
by
a single
hydraulic
cylinder
attached
to
the
drag
link
assembly
of the
nose
gear
and
the
side
brace
link
assembly
of the
main
gears.
As the
gears
retract,
doors
partially
enclose
each
gear
through
mechanical
linkage.
The
gears
are held
in
their
up position
by
hydraulic
pressure
alone
on
the cylinder.
There
are
no uplocks
and
loss
of hydraulic
pressure
will allow
the gears
to
drop.
It is
preferred
that
the
gears
be extended
and
retracted
with
the
use of
the gear
selector
handle;
however
in
the event
of
hydraulic
loss
or
electrical
failure,
they
can be
lowered
by pushing
down
on
the emergency
extension
lever
between
the pilot
seats
or they
will
drop
themselves
should
airspeed
drop
below
approximately
103
KIAS,
engine
power
off.
In either
instant
the
hydraulic
valve
of the
back-up
extender
unit
opens
to allow
hydraulic
pressure
to
neutralize
between
each
side
of the cylinder
pistons.
The
emergency
extension
lever
can also
be
used to
manually
overcome
system
malfunctions
or
to
meet
special
pilot
needs
such
as, a delibrate
wheels
up
landing
-needed
for
emergency
landings
on
water,
or during
various
flight
maneuvers
where
airspeed
and power
settings
would
normally
allow
the
gear
to extend.
It
also permits
gear retraction
after
take-off
at speeds
lower
than
those
normally
permitted
by
the
automatic
system.
When
using the
manual
extension
lever,
the
gear
position
is controlled
by
the selector
switch,
regardless
of airspeed/power
combinations.
An override
latch
mechanism
is
installed
which
allows
the
pilot
to latch
the
extension
lever
in the
up override
position,
thus bypassing
the
automatic
portion
of
the system.
A flashing
warning
light
is mounted
below
the
gear
selector
lever
to indicate
whenever
the latch
is in
use. The
latch
is disengaged
by
pulling
up on
the extension
lever.
To assist
the
nose gear
to
extend
under
these
conditions
are
two
springs,
one
inside
the other,
mounted
on arms
above
the gear
links.
The
main
gears
require
no assist
springs.
Once
the gears
are
down
and
the
downlock
hooks
engage,
a spring
maintains
each
hook
in the
locked
position
until hydraulic
pressure
again
releases
it.
A further
description
of
the hydraulic
system
and
the gear
back-up
extender
unit
may be
found
in Section
VI, Hydraulic
System.
The
nose
gear
is steerable
through
a 45 degree
arc
by the
use of
rudder
pedals.
As the
gear
retracts,
however,
the steering
linkage
becomes
separated
from
the
gear so
that
rudder
pedal
action
with the
gear
retracted
is
not impeded
by the
nose gear
operation.
A shimmy
dampener
is also
incorporated
in the
nose
wheel
steering
mechanism.
The
two
main
wheels
are equipped
with
self
adjusting
single
piston,
single
disc
hydraulic
brake
assemblies.
Toe brakes
are
standard
on both
the pilot's
and
copilot's
rudder
pedals.
An
optional
heavy
duty
double
piston,
single
disc brake,
wheel
and tire
kit is available
as an option
or
as
a field
kit
(Kit No.
761
- 052v).
A parking
brake
is
incorporated
with the
handle
and may
be used
by pulling
back
on
the
handle
and pushing
forward
on
the button
to the
left of
the handle.
To
release
the hand
brake,
pull
aft
on the
handle
and
allow
it to
swing
forward.
Hydraulic
fluid
for the
cylinders
is
supplied
by a
reservoir
installed
on
the left
forward
side of
the firewall.
Revised:
10/3/80
LANDING
GEAR
AND
BRAKE
SYSTEM
1J6

Piper PA-32RT-300T Specifications

General

Brand	Piper
Model	PA-32RT-300T
Category	Aircrafts
Language	English