Beechcraft TRAVEL AIR 95 Shop Manual page 106

TROUBLE
PROBABLE CAUSE CORRECTION
d. Overboard
line from control
d. Inspect and blow out line,
valve
partially blocked.
e. Pilot pressure and
pri-
e. Install
each line between
pilot
ority pressure lines
im-
port of one valve
assembly and
properly
installed (Tavco priority port
of opposite valve
control valve assemblies only)
,
assembly.
AUTOMATIC SURFACE DEICER(PRESSURE)
The following
troubleshooting
procedures are based on
the
assumption
that
the aircraft
engine-driven
dry air
pumps
are operational.
TROUBLE
PROBABLE CAUSE CORRECTION
1. Deicer boots do not inflate
a. Open circuit
breaker, a. Push deicer circuit breaker
to
(either or both engines reset,
operating
at minimum
cruise RPM for a period
b. Loose electrical
connection b. Tighten or repair as required.
of eight
seconds). or broken wire.
c. Time delay relay not c. See component
maintenance and
functioning. replacement,
time
delay relay.
d.
Deicer boot
puncture.
d. Repair as prescribed in
this
section or replace.
e.
Distributor
valves
not
e.
See Items 4 and 5 (Troubleshooting
functioning. Chart)
.
f
.
Piping lines
kinked,
f
.
Inspect lines
and connections;
blocked,
or not connec-
blow out lines,
ted.
g.
Leak in system. g. See system checkout, locate and
repair.
2. Deicer boots inflate
too
a. Piping lines kinked,
a.
Inspect lines and connections;
slowly (either or both partially blocked, or blow out lines.
engines operating
at
not connected securely,
minimum
cruise RPM
for a period of eight b. Leak in system, b. See system checkout, locate and
seconds). repair,
c. Deicer boot
puncture.
c. Repair
as
prescribed in
this
section or replace.
d. Distributor valve not d. See item 4 and 5 (Troubleshooting
functioning. Chart)
.
3. Deicer boots deflate a. Clogged instrument air a. See Component maintenance and
too
slowly.
filters.
replacement, air filters,
b. Piping lines kinked or b. Inspect and blow out lines.
partially
blocked.
c.
Overboard
line from
c. Inspect and blow out lines,
distributor
valve
par-
tially
blocked,
d. Distributor valve not d.
Overhaul
or
replace,
operating
properly.
3-73