Cessna T188C - Page 294

INCORRECT
INDICATION
OR
Leak in pitot or
static lines.
Repair
or replace
damaged
HAND OSCILLATES.
lines,
tighten connections.
Defective
mechanism.
Replace
instrument.
Leaking diaphragm.
Replace
instrument.
HAND
VIBRATES.
Excessive
vibration
caused
by
Tighten
mounting
screws.
loose mounting screws.
Excessive
tubing vibration.
Tighten
clamps and connections.
15-18. TROUBLE SHOOTING -- ALTIMETER.
NOTE
Refer to paragraph 15- 13 before blowing out pitot or static
lines.
TROUBLE
PROBABLE
CAUSE
REMEDY
INSTRUMENT
FAILS TO
Static line plugged.
Blow
out lines.
OPERATE.
Defective
mechanism.
Replace instrument.
INCORRECT
INDICATION.
Hands
not engaged.
Reset
hands with knob.
Leaking diaphragm.
Replace
instrument.
Pointers out of
calibration.
Replace
instrument.
HAND OSCILLATES.
Static
pressure irregular.
Blow out lines,
tighten connections.
Leak in
airspeed or
vertical
Blow out lines,
tighten
connections.
speed indicator installations.
15-7