2G2
TABLE X-V. ALTIMETER (cont)
Altimeter sticks at
Water or restriction
Remove static lines
altitude or does not
in static line.
from all instruments,
change with change of
blow line clear from
altitude.
cockpit to pitot head.
Altimeter changes
Water in static line.
Remove static lines
reading as aircraft
from all instruments,
is banked.
and blow line clear from
cockpit to pitot head.
Altimeter requires
Temperature compensator
Change instrument.
resetting frequently.
inoperative.
High or low reading.
Improper venting.
Eliminate leak in static
pressure system and check
alignment of airspeed tube.
Setting knob is hard
Wrong lubrication or
Replace instrument.
to turn.
lack of lubrication.
Inner reference marker
Out of engagement.
Replace instrument.
fails to move when
setting knob is rotated.
Setting knob set screw
Not tight when altimeter
Tighten instrument
loose or missing.
when reset.
screw, if loose.
Replace instrument,
if screw is missing.
Cracked or loose
Case gasket hardened.
Replace instrument.
cover glass.
Dull or discolored
Age.
markings.
Trouble
Cause
Remedy
Revised: 2/13/89
CHEROKEE ARROW III SERVICE MANUAL
INSTRUMENTS
Summary of Contents for ARROW III
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