Cessna 177 SERIES Service Manual

15-42. TROUBLE
SHOOTING
(Cont).
TROUBLE
PROBABLE
CAUSE
REMEDY
OBVIOUSLY INCORRECT
Defective
gage or sensing
Substitute
known-good gage
or
TEMPERATURE
READING.
unit.
sensing
unit. Replace gage
or
sensing unit.
POINTER
FAILS TO
GO OFF Defective
master switch.
Replace
switch.
SCALE
WITH CURRENT
OFF.
Defective gage.
Substitute
known-good gage.
Replace
gage.
15-43. FUEL
PRESSURE INDICATOR.
per-square-inch.
Pressure for
operating the
indi-
cator
is obtained
through
a hose connected
at
the
15-44. DESCRIPTION.
The
fuel pressure
indicator
carburetor.
is essentially
a pressure
gage
calibrated
in pounds-
15-45.
TROUBLE
SHOOTING.
TROUBLE
PROBABLE
CAUSE
REMEDY
DOES NOT
REGISTER.
Pressure line clogged.
Check
line for obstructions.
Blow out line.
Pressure
line broken.
Check line
for leaks and damage.
Repair
or
replace
damaged
line.
Fractured bellows
or damaged
Replace instrument.
mechanism.
Clogged snubber orifice.
Replace
instrument.
Pointer
loose on staff.
Replace instrument.
POINTER
FAILS TO
RETURN
Foreign matter
in line.
Check
line for obstruction.
Blow
TO ZERO.
out
line.
Clogged snubber
orifice at
Replace fitting.
carburetor
fitting.
Damaged bellows
or mechanism. Replace
instrument.
INCORRECT
OR ERRATIC
Damaged or
dirty mechanism.
Replace instrument.
READING.
Pointer
bent,
rubbing on dial
Replace instrument.
or glass.
Leak or partial
obstruction
in Check
line for
obstructions or
pressure line.
leaks.
Blow out
dirty line,
repair or
tighten loose
connec-
tions.
15-18
Change
2

Cessna 177 SERIES Specifications

General

Manufacturer	Cessna
Engine Type	Piston
Wingspan	35 ft 6 in (10.82 m)
Seating Capacity	4
Number Built	4, 295
Engine	Lycoming O-360
Horsepower	180 hp
Maximum Takeoff Weight	2, 500 lb (1, 134 kg)