Piper Navajo PA-31 Service Manual page 277

PIPER NAVAJO SERVICE MANUAL
I
TABLE V-II. TROUBLESHOOTING CHART (CONTROL SURFACES) (cont.)
Trouble
Cause
Remedy
FLAP CONTROL (PIPER) SYSTEM
Flaps have erratic op-
Transmission needs lu-
Lubricate transmission.
eration during exten-
brication.
sion and retraction.
(cont.)
Flap on one side fails
to operate.
Broken flexible actuator
shaft.
Defective transmission.
Replace flexible shaft.
Determine cause and
replace or repair.
Check operation in
accordance with
paragraph
5-68.
Faulty time delay
switch.
No indication of flap
position on indicator.
Defective indicator unit.
Defective sender unit.
Sender unit not adjusted
properly.
Defective wiring.
Battery switch off.
Circuit breaker
open.
Sender unit ground open.
Replace indicator unit.
Replace sender unit.
Adjust sender unit in
accordance
with Para-
graph 5-67.
Check and repair
wiring.
Turn switch on.
Reset circuit breaker.
Check ground connec-
tion.
SURFACE CONTROLS
Revised: 1/29/82
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