Piper Navajo Chieftain PA-31-350 Service Manual page 265

NAVAJO CHIEFTAIN SERVICE MANUAL
TABLE V-Ill. TROUBLESHOOTING CHART (SURFACE CONTROLS) (cont.)
Trouble
Cause
Remedy
FLAP CONTROL SYSTEM (cont.)
Flaps fail to extend
or retract. Flap so-
lenoid does not ac-
tuate. (Solenoid
circuit.) (cont.)
Flaps fail to re-
tract completely.
Flaps do not extend
completely.
Ground open from flap
solenoid.
Defective circuit
wiring.
Up limit switch incor-
rectly adjusted.
Down limit switch in-
correctly adjusted.
Check ground connec-
tion.
Isolate cause and re-
pair.
Adjust flap.
Adjust limit switch.
Flaps not synchro-
nized or fail to fit
evenly when re-
tracted.
Incorrect adjustment
of the transmission
tube.
Rig.
Flaps have erratic
operation during
extension and
retraction.
Binding between flexi-
ble shaft and motor.
Isolate cause and lu-
bricate cable if re-
quired.
Binding between track
and rollers.
Slipping or stripped
transmission.
Loose electrical con-
nection.
Refer to Rigging and
Adjustment.
Replace transmission.
Check and repair elec-
trical connections.
SURFACE CONTROLS
Reissued: 9/23/80
1Ll