Piper Navajo PA-31 Service Manual page 448

PIPER NAVAJO SERVICE MANUAL
TABLE VII-I. TROUBLESHOOTING CHART (LANDING GEAR SYSTEM) (cont.)
Trouble
Cause
Remedy
Doors fail to close.
Circuit breaker
out.
Check circuit breaker.
Limit switch out of
adjustment.
Gear not fully retrac-
ted.
Cannon plug on power
pack loose.
Adjust limit switch.
Check adjustment.
Tighten plug.
Solenoid valve stuck in
door open position.
Micro switch on Power Pack
out of adjustment
Not enough actuator
stroke.
Nose gear fails to
lock up when handle
returns to neutral.
Check wiring to sole-
noid valve.
Adjust or replace
Increase the actuator
stroke.
Relieve door pinch by
lengthening door oper-
ating rods.
Gear doors pinching.
Main gear fail to
lock up.
Uplock rod out of
adjustment.
Adjust rod.
Actuator out of adjust-
ment.
Adjust actuator.
No red light on panel
when gear are in
transit.
Circuit breaker out.
Indicator light burned
out.
Check circuit breaker.
Replace indicator
light.
Circuit wire broken.
Check wiring.
Reissued: 10/12/79
LANDING GEAR AND BRAKE SYSTEM
2G22