Raytheon Beech Baron E55 - H-14 Autopilot System

aeechcraft
BARON
55
AND
58
SHOP
#ANUAL
INSPECTING THE
STATIC
SYSTEM
1.
Place
the
elevat~
and elevator
servo
in
the
neutral
position.
NOTE
2.
Center
the
servo
bellcrank
on
the
cable
On
airplane
serials
TC-1403
and
after,
(approximate
center
reached
when
the bellcrank
is in
TE-847 and
after,
TH-1
and
after,
the
vertical
position
with
servo).
aluminum static
lines
are
replaced
with
3.
Rig
the
elevator
servo cables
as
noted
on
the
Poly-flo
tubing.
Cable tension
Temperature
Chart
in
Section 4.
The static
air
system
should
be
inspected
at
the
same
Elevator
Tab
Control
time
as
the
pitot
system
is
inspected,
as
follows:
The
autopilot
elevator
trim
tab
actuator
is
connected
Check
the
rubber
hose
or
Poly-flow tubing connecting
directly
to
the
airplane
elevator
tab
control
system.
the
static
air lines
to
the instrument
plumbing,
and
the
Rigging
of the elevator
tab
system
may
be
acrom-
rubber
hose
or
Poly-flo
tubing
which
forms
the
static
plished
as
described
in
Section 4.
line drain. Hoses
with the
outer
surfaces checked
or
cracked,
particularly
at
the bends
or
connecting
d´•
Rudder Control
points,
or
which have
become
hard,
should
be
1.
Release
the rudder
pedal adjusting
levers
and
replaced.
Replace damaged
hose
with
Poly-flo
tubing.
place
all
pedals
in
the
aft
position.
I
(Flgure
11-43)
pilot’s
rudder
pedals.
H-14
AUTOPILOT
SYSTEM
2.
Install
the
rig
pin
in the
holes
provided
in
the
The
primary
components
of
the
autopilot
pneumatic
3.
Rig
the
rudder
servo
cables
as
noted
on
the
system
are
shown. Refer
to
Figure
11-43.
The
air
Cable Tension
Temperature
Chart
in
Section 4.
pressure
is admitted
to
the
autopilot pneumatic
sys-
4.
Remove the
rig
pin
from the
pilot’s
rudder
tem
through
a
solenoid
valve actuated
by
the
ON-OFF
pedals
and
place
rudder
pedals
in
their
original
posi-
switch
in the
flight
controller.
A
pressure
control valve
tion.
(up (upstream
from
the
solenoid
valve)
maintains
a
pressure
of
8.0
pounds
in
the
system
with
the
autopi-
MAINTENANCE AND
REPAIR
lot
in
operation.
An
air
filter
protects
the
servos
from
any
impurities entering
the
system.
Servo
actuators,
Maintenance,
repair,
troubleshooting,
and
testing
pro-
powered
by
the
air
pressure,
move
the
airplane
con-
cedures
are
described
in
the
BEECHCRAFT
H-14
trol
suriaces.
The
servos can
be
overpowered
without
Adaptive
Autopilot
Maintenance
Manual,
PIN
13033F.
damage
to
the unit.
The elevator
trim
tab
actuator,
NOTE
also
powered by
air
pressure,
moves
the
airplane
trim
tab
to
automatically
maintain
pitch
trim.
When
test
air
pressure
is
required,
apply
air
pressure
to
the inlet side
of
the
pres-
RIGGING
sure
controlvalve.
NOTE
BEECHCRAFT NEW-NIATIC AUTOPILOT
Before the
autopilot
control
cables
are
(Figure
I
rigged,
the
respective
airplane
control
system
cables
must
be
rigged
as
speci-
The
BEECHCRAFT New-matic
autopilots
operate
on
Red
in
Section
4.
an
electro-pneumatic
concept.
Electronic
circuitry
is
a.
Aiieron
control
used for
navigational
beam
detection
and
magnetic
heading
direction
turns.
Pneumatic
servos
are
used
1.
Place the
ailerons
in the
neutral
position,
for the
Right
control
actuators.
The
systems
are com-
2.
Set
the
aiieron
servo
cable
drum
in
the
center
pletely nontumbling.
Yaw,
roll and
turn
detection
is
of travel,
made
by
a
tilted
gyro
mounted
in
the instrument
panel.
A
dampened
miniature
airplane
serves as
the
instru-
3.
Rig
the
aileron
servo
cables
as
noted
on
the
ment
indicating
arm.
Any
deviation from
straight Right
Cable Tension
Temperature
Chart
in
Section 4.
causes
the
rate
gyro
to
move
a
pressure
(or
vacuum)
b.
Elevator
control
valve
which
puts
force into the
aileron
or
rudder
to
11-78
815