1I12
TABLE VI-III. HYDRAULIC SYSTEM TROUBLESHOOTING (cont)
Landing gear extension
§ Landing gear selector
§ Reset circuit breaker
system fails to operate.
circuit breaker open
and determine cause
(cont)
for open circuit breaker.
§ Landing gear actuator
§ Check wiring.
circuit wires broken.
§ Landing gear selector
§ Check wiring.
circuit wires broken.
§ Pump extension solenoid
§ Replace solenoid.
inoperative (outboard
solenoid).
NOTE
If the extension 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.
§ Hydraulic pump ground
§ Check ground.
incomplete.
§ Hydraulic pump
§ Replace or overhaul
inoperative.
pump.
§ Hydraulic fluid in
§ Fill reservoir with
reservoir below
hydraulic fluid.
operating level.
§ Low or dead battery.
§ Check condition of
battery.
§ Applies to all airplanes.
Trouble
Cause
Remedy
Revised: 2/13/89
CHEROKEE ARROW III SERVICE MANUAL
HYDRAULIC SYSTEM
Summary of Contents for ARROW III
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