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TROUBLE
PROBABLE
CAUSE
CORRECTION
b. Clogged
metering
jet.
b. Disassemble
mixture
control
and
clean
jet.
c. Clogged
flow divider.
c. Disassemble
and clean
flow
divider.
4. Poor
acceleration.
a.
Idle mixture
too
lean.
a. Readjust
idle mixture.
LIGHT WEIGHT
RESERVOIR DEICER
TROUBLE
PROBABLE
CAUSE
CORRECTION
L
Deicers
do not inflate,
or
a,
Control cables
not connected
a,
Inspect
cable
connections
to the
inflate
slowly.
or not fastened
to
the
valves
valves
for
tightness
and proper
tightly,
adjustment.
b.
Mechanical
interference
of
b,
Correct
interference
problem,
cables
or mechanism.
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 a
e.
Reset
regulator,
pressure,
f.
Cycling
valve
not
operating
i.
Check
cycling
control
cable for
or not
completely
engaged,
proper
adjustment,
g. Plumbing
blocked
or not
g.
Blow out
lines and
inspect
connected.
connections.
2. Deicers
do not deflate,
a.
Cycling
valve
not
operating
a.
Check
cycling
control
cable for
or deflate
slowly.
properly.
proper
adjustment
and possible
mechanical
interference,
b.
Plumbing
blocked
or not
b.
Blow out lines
and inspect
connected,
connections.
c.
Check valve
malfunctions
at
c. Observe
check
valve.
Unplug
cycling
valve
assembly.
outlet,
repair
or replace
check
valve
if defective.
d. Right engine
not running,
d. Start
right
engine
or correct
vacuum
supply
to
aid deflation
vacuum
system
malfunction.
and hold down is not available.
3. Deicers
remain
inflated,
a. Improper
tubing
connection,
a.
Check
tubing
connections
to
reservoir
drains
on first
cycling
valve.
cycle,
or automatic
return
of cycling
valve
does not
function.
4.
Regulator
safety
valve
-
a.
Regulator
safety
valve
im-
a. Reset
valve,
popping
under
30
psi,
properly
set.
5.
Shut-off
valve
does
not
a.
Shut-off
valve
actuating
pin
a.
Check
actuating
pin,
replace
effect
complete
shut-off.
does not drop free
to
let
the
if defective,
shaft
inside
the
valve seat
completely.
3-71
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Table of Contents
Troubleshooting
