Piper Navajo PA-31 Service Manual page 672

PIPER NAVAJO SERVICE MANUAL
TABLE X-II. TROUBLESHOOTING CHART (INSTRUMENTS) (cont.)
Trouble
Cause Remedy
MAGNETIC COMPASS
Excessive card error. Compass not properly Compensate instrument
compensated.
External magnetic Locate magnetic in
interference. ference and eliminate
Exc
nent.
ter-
Late
if possible.
Excessive card oscil-
lation.
Card sluggish
Liquid leakage.
Improper mounting on
instrument panel.
Insufficient liquid.
Weak card magnet.
Excessive pitov fric-
tion or broken jewel.
Instrument too heavily
compensated.
Loose bezel screws.
Broken cover glass.
Defective sealing
gaskets.
Align instrument.
Replace instrument.
Replace instrument.
Replace instrument.
Remove excess com-
pensation.
Replace instrument.
Replace instrument.
Replace instrument.
Discolored luminous
markings damping
liquid.
Age. Replace instrument.
INSTRUMENTS
Reissued: 10/12/79
3E10