Piper Navajo Chieftain PA-31-350 Service Manual page 589

NAVAJO CHIEFTAIN SERVICE MANUAL
TABLE X-IV. RATE OF CLIMB INDICATOR (cont.)
Cause
Trouble
Remedy
Pointer fails to
respond. (cont)
Water in static line.
Check individual instru-
ments for obstruction
in lines.
Obstruction in pitot
head.
Clean lines and head.
Pointer oscillates.
Leaks in static lines.
Disconnect all instru-
ments connected to the
static line. Check
individual instruments
for leaks. Reconnect
instruments to static
line and test installa-
tion for leaks.
Defective mechanism.
Replace instrument.
Rate of climb indi-
cates when aircraft
is banked.
Pointer has to be
set before every
flight.
Pointer cannot be
reset to zero.
Instrument reads
very low during
climb or descent.
Water in static line.
Temperature compen-
sator inoperative.
Diaphragm distorted.
Case of instrument or
line broken or leaking.
Disconnect static lines
and blow out lines from
cockpit out to pitot
head.
Replace instrument.
Replace instrument.
Replace instrument.
10-36. REMOVAL AND REPLACEMENT.
(Refer to paragraph 10-94 of this section.)
Reissued: 9/23/80
INSTRUMENTS
3B11