Piper Navajo PA-31 Service Manual page 266

PIPER NAVAJO SERVICE MANUAL
TABLE V-II. TROUBLESHOOTING CHART (CONTROL SURFACES) (cont.)
Trouble
Cause
Remedy
AILERON TRIM CONTROL SYSTEM (cont.)
Trim tab fails to reach
full travel.
System incorrectly rig-
ged.
Check and/or adjust
rigging per Paragraph
5-20.
Either or both trim
drums incorrectly
wrapped.
Check and/or adjust
rigging per Paragraph
5-20.
Trim indicator fails to
indicate correct trim
position.
Trim indicator fails to
indicate any movement.
Trim sender unit not
adjusted properly.
Low voltage in system.
Circuit breaker open.
Master switch not on.
Adjust in accordance
with Paragraph 5-21.
Check power supply.
Reset circuit breaker.
Turn on master switch.
Trim indicator ground
open.
Trim sender unit de-
fective.
Trim indicator unit
defective.
Defective wiring in
system.
Check ground wire.
Replace sender unit.
Replace indicator unit.
Check wiring.
Trim indicator pointer
moves to extreme right
position.
Trim sender unit
ground open.
Check sender unit
ground.
Reissued: 10/12/79
SURFACE CONTROLS
1L2