Piper COMANCHE PA-24-180 Service Manual page 672

Excessive crd
oscllation
Card sluggish
Liquid ieakage
PIPER COMANCHE SERVICE MANUAL
11-42. Magnedc Compss.
11-43. General. The magneric compss installed in the Comanche is a self-contained insrument
and is
mounted above :he insrument
panel on the windshield centerstrip. This instrument has an individual light
which is connected to the instrument lighting circuit. The compas correction card is located in the card
holder mounted on the instrument panel.
11-44 Troubleshooting.
0
TABLE XI-VII. MAGNETIC COMPASS
Trouble Cause Remedv
Compensate insrument. Excessive card error. Compass not property
compenstated.
ExrernaJ magneric inter-
ference.
Locate magnenc inter-
ference and eliminate
if possible.
Improper mountng on in-
strument panel.
Insufficient liquid.
Weak card magnet.
Excessive pivot nction
or broken jewel.
Instrument too heavily
compensated
Loose bezel screws.
Broken cover glass
Defective scaling gaskes.
Align istrument.
Replace instrument.
Replace instrument.
Replace instrument.
Remove excess compen-
sacion.
Replace instrument.
Replace instrument.
Replace instument.
Replace instrument.
Check lamp or continuit
of winng.
0
Discoiored luminous
! nrkines
Detective light
Age.
Burned our lamp or broken
clrcuit
INSTRUMENTS
ISSUED: 8/18/72
0
3 G1