Piper ARROW III, Service Manual

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TABLE VI-III. HYDRAULIC SYSTEM TROUBLESHOOTING (cont)
Landing gear retraction § Gear selector switch § Check ground.
system fails to operate ground incomplete.
(cont)
§ Gear selector switch § Replace switch.
inoperative.
§ Hydraulic pump ground § Check ground.
incomplete.
§ Hydraulic pump § Replace or overhaul
inoperative. pump.
* Auxiliary extender * Replace unit.
switch inoperative.
§ Hydraulic fluid in § Fill reservoir with
reservoir below hydraulic fluid.
operating level.
§ Battery low or dead. § Check condition of
battery.
§ Pressure head air
passage obstructed.
§ Pressure head § Reconnect hose.
hose off.
* Split or hole in * Replace unit.
diaphragm of
auxiliary extender.
Can be checked by
using override.
Landing gear extension Landing gear actuator Reset circuit breaker
system fails to operate. circuit breaker open. and determine cause
for open circuit
breaker.
* Applies only to airplanes that are in compliance with Part II Service Bulletin 866A and the back-up
extension system is operational.
§ Applies to all airplanes.
Trouble Cause Remedy
Revised: 2/13/89
CHEROKEE ARROW III SERVICE MANUAL
HYDRAULIC SYSTEM