Raytheon Beech Baron E55 - Page 568

aeechcraft
BARON
55
AND
58
SHOP
MANUAL
AUTOPILOT
TROUBLESHOOTING
GUIDE
(Continu~d)
Indication
Probable Cause
Remarks
c.
Altitude
limiter
improperly
c.
Adjust
as
require.
adjusted.
16.
Airplane
decends
or
ascends
a.
Servo
control valve
not
phased
a.
Apply positive
6.0
volts
(max)
to
continually
when
system engaged, correctly.
blue lead
and
verify
nose
up
response.
STATIC
WICKS
(TC-2421
AND
AFTER,
NOTE
TE-
1196
AND
AFTER,
TH-
1298
AND
To
ensure
the
best
possible
functioning
AFTER)
of
the
static
wicks,
the
resistance
between the
base
of
the
static wick and
A
static
electrical
charge
may
build
up
on
the surface
the
surface to
which
each
base
is
of
the
airplane
while
in
flight.
This
electrical
charge,
a
attached
must
be
less
than .0100 ohms.
retained,
can
cause
interference
in
radio
and
avionics
The
resistance
between
the control
sur-
equipment
operation;
therefor,
static
wicks
are
face
on
which
the
static wick is
attached
installed
on
the
trailing edges
of
flight
surfaces
to
aid
to
and
the
airplane
structure
must
be
in
dissipating
the
electrical
charge.
The
static
wicks,
less
than
.0025
ohms. Check
the
static
three
on
each
wing
tip,
three
on
each
elevator,
and
wicks
using
the
foilowing
procedure:
three
near
the
top
of
the
rudder,
are
removed
and
installed
in
the
same manner.
The
static
wick base
is
riveted
to
the
flight
surface and
should
not
be
removed
i
CAU´•TION
in
normal service.
STATIC
WICK
REMOVAL
Nectrical
shock
can
resulty
if
the
mego-
a.
Unscrew the
static
wick
from
the
base.
hmmeter is
improperly
used.
Refer
to
the
applicable
manufacturer’s
operating
b.
Remove
the
static
wick
and
lock
washer.
handbook
for
proper
operating
proce-
dures.
STATIC
WICK INSTALLATION
NOTE
a.
Connect
a
test lead
from
the
megohmmeter
to
the
metal
tip
on
the
static
wick.
The
surface
between
the
static wick and
the
mounting
surface
must
be clean
and
b.
Connect the
other
test lead
from
the
megohmme
free
of
paint
or
corrosion.
ter to
the base of
the static wick.
a.
Install
the
static
wick
and
lock
washer,
c.
Place the
megohmmeter
power
switch
to
ON
and
b.
Torque
the
static wick
to
4.7
inch-pounds,
observe
the
meter
indication.
A
reading
of
be~veen
1
and
100
megohms
indicates
the
static
wick is satisfac-
STATIC
WICK
INSPECTION
tory.
A
reading
of less
than
1,
or
in
excess
of
100
The
static
wicks
should
be
inspected
when
there
is
a
megohms
indicates
that the
static wick is
unsatisfac-
noticeable
static
buildup
from
precipitation
and
any
tO’y
and
must
be
replaced.
time
there
is
a
lightning
strike.
Check
the
static
wicks
d. Place the
megohmmeter
power
switch
to
OFF
using
a
megohmmeter
with
a
test
voltage
of
and disconnect
the
test
leads
from
the
static
wick
tip
500
volts
to
measure
the
resistance of
the
static
dis-
and its
base.
charger
wicks.
Test
voltages
of
less
than
500
volts
will
not
generate
a
leakage
rate
sufficient
to
provide
an
accurate
reading.
11-88
E~5