Troubleshooting - Piper ARROW III Service Manual

e. Head aircraft on magnetic West and do same as step d, adjusting E-W adjusting screw.
f. Head aircraft in successive magnetic 30° headings and record compass readings on appropriate
deviation card. Deviations must not exceed ± 10° on any heading.

10-42. TROUBLESHOOTING.

Trouble
Excessive card error.
Excessive card
oscillation.
Card sluggish.
Liquid leakage.
Discolored markings.
Defective light.
Card sticks.
Card does not move
when compensating
screws are turned.
Revised: 2/13/89
CHEROKEE ARROW III SERVICE MANUAL
TABLE X-VII. MAGNETIC COMPASS
Compass not properly
compensated.
Extemal magnetic
interference.
Insufficient liquid.
Wear card magnet.
Excessive pivot friction
or broken jewel.
Loose bezel screws.
Broken cover glass.
Defective sealing
gaskets.
Age.
Burned out lamp or
broken circuit.
Altitude compensating
diaphragm collapsed.
The gears that turn
compensating magnets
are stipped.
Cause
2G5
Remedy
Compensate instrument. (Refer
to Paragraph 10-41a.)
Locate magnetic interference
and eliminate if possible.
Replace instrument.
Replace instrument.
Replace instrument.
Replace instrument.
Replace instrument.
Replace instrument.
Replace instrument.
Check lamp or continuity
or wiring.
Replace instrument.
Replace instrument.
INSTRUMENTS