PIPER CHEROKEE SIX / LANCE SERVICE MANUAL
VA - HYDRAULIC SYSTEM
07/15/06
1K8
TABLE VA-IV. HYDRAULIC SYSTEM TROUBLESHOOTING (cont.)
Trouble
Cause
Remedy
Landing gear retraction
Pressure head air
Clear obstruction
system fails to operate. (cont.)
passage obstructed. *
Pressure head hose off. *
Reconnect hose.
Split or hole in diaphragm
See latest revision of
of auxiliary extender. *
Piper Service Letter
No. 810.
* 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.
Landing gear selector
Reset circuit breaker
circuit breaker open.
and determine cause
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 in
Replace or overhaul
operative.
pump.
Hydraulic fluid in
Fill reservoir with
reservoir below
hydraulic fluid.
operating level.
Low or dead battery.
Check condition of
battery.
Summary of Contents for Cherokee LANCE
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