PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 12
Nov 30/06
3H12
34-20-00
Trouble Cause Remedy
CHART 2
TROUBLESHOOTING DIRECTIONAL GYRO
Excess drift in either Setting error. Review paragraph titled
direction. “Description” for gyro
operation.
Defective instrument. Replace instrument.
High or low vacuum. If vacuum
is not correct, check for the
following:
1. Relief valve improperly 1. Adjust relief valve
adjusted.
2. Incorrect gauge reading. 2. Replace gauge.
3. Pump failure. 3. Repair or replace.
4. Vacuum line kinked or 4. Check and repair. Check
leaking. for collapsed inner wall
of hose.
Dial spins during turn. Limits (55° bank) of gimbal Recage gyro in level flight.
exceeded.
Blockage or leak in line between Check hose between
regulator and instruments. regulator and instrument for
blockage. Check hose
connections. Replace hose
and/or tighten connections.
Dial spins continuously. Defective mechanism Replace.
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