29-00-02
Page 29-07
December 1, 1978,
2C1
CHART 2901. HYDRAULIC SYSTEM TROUBLESHOOTING
Landing gear retraction Landing gear actuator Reset circuit breaker and
system fails to operate. circuit breaker open. determine cause for open
circuit breaker.
Landing gear selector Reset circuit breaker and
circuit breaker open. determine cause for open
circuit breaker.
Landing gear actuator Check wiring.
circuit wires broken.
Landing gear selector Check wiring.
circuit wires broken.
Safety (squat) switch out Readjust switch. (Refer to
of adjustment. Adjustment of Safety
Switch, Chapter 32).
Squat switch inoperative. Replace switch.
Pressure switch inopera- Replace switch.
tive.
Pump retraction solenoid Replace solenoid.
inoperative (inboard
solenoid).
—NOTE—
If the retracting solenoid of the pump can be heard to actuate
when operating the gear selector switch, it may be assumed that
the gear control circuit is operating properly and the actuator
circuit should be further checked.
Gear selector switch Check ground.
ground incomplete.
Gear selector switch Replace switch.
inoperative.
Trouble Cause Remedy
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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