Piper Cherokee Six - Page 243

PIPER
CHEROKEE SIX
SERVICE MANUAL
TABLE VA-III. HYDRAULIC SYSTEM TROUBLESHOOTING (cont.)
Trouble
Cause
Remedy
Landing gear extension
system
fails to
oper-
ate. (cont.)
Pump
extension
sole-
noid
inoperative
(outboard
sole-
noid).
Replace 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
ground
incomplete.
Gear selector switch
inoperative.
Hydraulic pump ground
incomplete.
Hydraulic pump inop-
erative.
Hydraulic fluid in
reservoir below
operating level.
Low or dead battery.
Check ground.
Replace switch.
Check ground.
Replace
or
overhaul
pump.
Fill reservoir with
hydraulic fluid.
Check
condition
of
battery.
HYDRAULIC
SYSTEM
Issued: 7/28/75
1K3