Piper Navajo PA-31 Service Manual page 275

PIPER NAVAJO SERVICE MANUAL
TABLE V-II. TROUBLESHOOTING CHART (CONTROL SURFACES) (cont.)
I
Trouble
I
Flaps fail to extend
or retract though flap
solenoid actuates.
(Motor circuit.)
Flaps fail to extend
or retract.
Flap so-
lenoid does not ac-
tuate.
(Solenoid circuit.)
Cause
FLAP CONTROL (PIPER) SYSTEM
Battery switch off.
Turn switch on
ap
Flap motor circuit R
breaker
open.
Defective flap selector Replace selector
switch.
s
Defective flap motor R
circuit
relay.
Ground open from flap C
motor circuit relay. t
Ground open from flap C
selector switch.
tion.
Defective flap motor.
R
Defective circuit Is
wiring.
pair.
Battery switch off. Turn switch on
so-
Flap solenoid circuit R
breaker open.
Defective flap selector
R
switch. s
Defective up or down R
limit switch. s
Defective flap solenoid. R
Remedy
urn switch on.
eset circuit breaker.
eplace selector
witch.
eplace relay.
heck ground connec-
ion.
heck ground connec-
ion.
eplace motor.
Isolate cause and re-
pair.
urn switch on.
eset circuit breaker.
eplace selector
witch.
eplace defective
switch.
eplace flap solenoid.
Revised: 1/29/82
SURFACE CONTROLS
1L11