Raytheon Beech Baron E55 - Page 494

BEECHCFIAFT
BARON
55 AND
58
SHOP
MANUAL
TROUBLESHOOTING
LIGHTWEIGHT
SURFACE
DEICER
(RESERVOIR-TYPE)
INDICA
TION
PROBABLE
CAUSE
REMARKS
i.
Deicers
do
not inflate, or
in-
a.
Control cables
not
connected
Inspect
cable
conne~ction\
to
the
flate
slowly,
or
not
fastened
to
the
valves
for
tightness
and
proper
stljusrmcnr,
tightly.
b.
Mechanical interference
of b. Correct
interference
problem.
cables
c.
Reservoir
empty.
c.
Charge
reservoir.
d.
Shut-off
valve
not
open.
d.
Check
shut-off valve
control
cable
for
proper
adjustment.
e.
Regulator
set
for
too
low
1
e.
Reset
regulator.
pressure.
f.
Cycling
valve
not
operating
or
f. Check
c)c!ing
control
cable
for
prup´•r;,j.
not
completely
engaged.
justment.
g.
Piping,
lints blocked
or
not
g.
Blow
out
lines
inspect
connected.
i.
Deicers do
not
deflate.
or
de-
a.
Cycling
valve
not
operating
a.
Check
cycling
control cable
for
prapr´•r;l~-
flate
slowly.
properly.
justment
anil
possible
mechanical
inrerfci-
ence.
b.
Piping,
lines
blocked
or
not
b.
Blow
out
lines
and
inspect
c´•onncclion\.
connected.
c.
Check
valve
malfunctions
at
c.
Observe
chrck valve.
Unplug
outlet.
rz-
cycling
valve
assembly, pair
or
replace
check valve
if
d.
Right engine
not
running
vnc-
d.
Start
right engine
or
correct
v;iciilurn
uum
supply
to
aid deflation
tem
malfunction.
and
hold
down
is
not
avail-
able.
3.
Deicer
remains
inflated:
re-
a.
Improper
tubing Fonnection,
a.
Check
tubing
connections
to
cycling
servoir
drains
on
first
cycle
or
valve.
automatic
return
of
cycling
valve does
not
function.
4.
Regulator
safety
valve
pop-
a.
Regulator
safety
valve
impro-
a.
Reset
valve.
ping
under
30
psi.
perly
set.
5.
Shut-off
valve
does
not
effect
a.
Shut-off
valve
actuating
pin
a.
Check
actuating
pin,
replace
if
ctsfcctivc.
complete
shut-off,
does
not
drop
free
so as
to
let
the shalt inside
the
valve
seat
completely.
6.
Cycling
valve
automatic
re-
a.
Cycling
valve
out
of
ndjust-
a.
Adjust
the
cycling
valve
"popoff"
prct~-
turn
functions before deicers
ment.
sure.
are
fully
inflated
or
inflation
cycle
is
longer
than
5
to
9
seconds.
11-14
E1D