Raytheon Beech Baron E55 - Page 518

~Bechcraft
BARON
55
AND
58
SHOP
MANUAL
TROUBLESHOOTING
PNEUMATIC
PRESSURE
SYSTEM
LIGHTWEIGHT AUTOMATIC SURFACE
DEICER
(PUMP-DRIVEN)
(TC-2003
AND
AFTER,
TE-452 AND
AFTER,
TH-1
AND
AFTER)
(CONT’D)
The
following
items
might
aid
in
ascertaining
whether
or
not
the distributor valve
is
functioning
properly.
Indication Probable Cause
Remarks
4.
One
or
more
boots do
not
inflate
a.
Defective
wiring
in
external
a.
Refer
to
airplane
system
wiring
with
pressure
gage
at
normal circuit
or
other
units.
diagram
and
make
check.
reading
and
timer
cycling.
Disconnect
plug
at
distributor
va~ve.
b.Faulty
solenoid
in
distributor
b.
Measure
resistance of
valve.
solenoids.
Reading
should
be
17.5
ohms
5%
through
the
receptacle
pins. Replace
distributor valve if
readings
do
not
check.
c.
Mechanical
failure,
distributor
c.
Disconnect the lines
at
the
valve,
outlet
ports
of the
dictributor
valve
and
check
valve
operation
with
a
gage.
If
thouble
is
not
found in
the
distributor
valve,
inspect
boots
and lines
for
leaks
or
blockage.
5.
One
or
more
boots
inflate
but do
a.
Exhaust
port
of
distributor valve
a.
Route exhaust line
to
low
not deflate
readily
with
pressure
not
vented
to
low
pressure
area.
pressure
area.
gage
at
normal
reading
timer
cycling.
b. Vacuum
ejector
on
distributor b. Overhaul
or
replace
distributor
valve
plugged
or
partially
blocked. valve.
c.
Defective
boots,
c.
Repair
as
prescribed
in this
section
or
replace.
d.
Obstruction
of lines. d.
Disconnect
line from
exhaust
port
of
distributor
valve
and
see
if
line is
clear
to
low
pressure
area.
e.
Mechanical failure
in
distributor
e.
With line
disconnected
see
if
valve,
exhaust
port
is
discharging;
if
not,
replace
distributor
valve.
a
two-part
cement.
Mix
the Bostic
1008
in the
follow-
I
STALL
STRIP INSTALLATION
ing
manner:
30
parts
(by weight)
of the
base
material
tin
the "A"
package)
with
1
part
(by weight)
of the
The
stall
strip
is
located
on
the
left
wing
only
and
is
accelerator
tin
the
"B"
package).
located
as
indicated
in
Figure
11-17.
Stall
Strip
instal-
c.
Apply
a
coat to
both
the stall
strip
and
the
area
to
lation
is
accomplished
as
follows:
which it will
be
bonded.
Allow
to
dry
10
to
15
minutes,
a.
Clean
the boot
surface
thoroughly, removing
all
then
install
the
strip
as
described
in
the
illustration.
old
glue.
Mask
off
the
area
where
the
new
strip
is
to
The
cement
will
set
in
about 6 hours.
be
installed
and
wipe
with
methyl
ethyl
ketone
(19,
Consumable
Materials
Chart,
Section
2).
d.
When
dry,
coat
the
area
with
A56B
cement
(1,
Sealing
Chart,
Section
2)
to
replace
the
conductivity
of
b.
Install
the
stall
strip
to
the
deicer
boot
using
Bos-
the
boot.
tic 1008
(48,
Consumable Materials
Chart,
Section
2),
11-38 515