Troubleshooting Chart (Landing Gear System) - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
TABLE VII-II. TROUBLESHOOTING CHART (LANDING GEAR SYSTEM)
Trouble
Cause Remedy
Landing gear selector
handle fails to oper-
ate to gear up
position.
Selector lever cannot
be moved to the gear
up position while the
LEFT main gear strut
is compressed or with
the power off.
Ascertain that the LEFT
main gear strut is ex-
tended and that the
power is on.
Faulty safety switch on
left main gear.
Adjust or replace safety
switch.
Gear retracts or ex-
tends before the
doors open.
Priority valve leaks in
power pack.
Solenoid valve stuck in
closed position.
Check priority valve
cracking pressure.
Turn off power and hand
pump doors open.
Micro switch on power
pack out of adjustment.
Check for bent bracket
or loose mounting or
wire and adjust.
NOTE
With power off, solenoid valve shuttles to door open and the
doors may be opened without selecting gear up or down.
Doors come open in
flight.
Doors are rigged too
tight.
Adjust rigging of doors.
Micro switch on power
pack out of adjustment.
Adjust micro switch.
Reissued: 9/23/80
LANDING GEAR AND BRAKE SYSTEM
2G10