Cessna 182 1978 - Troubleshooting - Fuel Pressure Gage

MODEL
182 &
T182 SERIES
SERVICE
MANUAL
15-38.
TROUBLE
SHOOTING -
- MANIFOLD
PRESSURE GAGE
(Cont.)
TROUBLE
PROBABLE
CAUSE
REMEDY
SLUGGISH
OPERATION
Foreign
matter
in line.
Check
line for obstructions.
OF POINTER.
Blow
out line.
Damping
needle
dirty.
Replace instrument.
Leak
in pressure
line.
Test
line and connections
for leaks.
Repair
or replace damaged
line,
tighten
connections.
EXCESSIVE
POINTER
Tight
rocker pivot
bearings.
Replace
instrument.
VIBRATION.
Excessive
vibration.
Check panel shock-mounts.
Replace
defective shock-mounts.
IMPROPER CALIBRATION. Faulty mechanism. Replace instrument
NO POINTER
MOVEMENT.
Faulty mechanism.
Replace instrument
Broken
pressure
line.
Check
line
and
connections
for
breaks
Repair or replace damaged line.
15-39. TROUBLE
SHOOTING
--
FUEL PRESSURE
GAGE.
TROUBLE
PROBABLE CAUSE
REMEDY
DOES NOT
REGISTER
Pressure line
clogged.
Check
line for obstructions.
Blow
out
line.
Pressure line broken.
Check line for
damage or leaks.
Repair or replace damaged line.
Fractured bellows or Replace instrument.
damaged
mechanism.
Clogged
snubber orifice.
Replace instrument.
Pointer loose on shaft. Replace instrument.
POINTER
FAILS TO Foreign matter
in line. Check line for obstructions.
RETURN
TO ZERO.
Blow
out line.
Clogged
snubber orifice.
Replace instrument
Damaged bellows
or Replace
instrument
mechanism.
INCORRECT OR ERRATIC Damaged or dirty Replace instrument.
READING.
mechanism.
Pointer bent, rubbing on Replace instrument
dial or glass.
Leak or
partial obstruction
Check line for obstructions
in pressure or vent line. or leaks.
Blow out dirty line, repair or
tighten loose connections.
15-19