Adjustment Of Landing Gear Safety Switch; Landing Gear Warning System; Removal Of Gear Warning Switches - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
e.
Install the actuator cylinder rod to the door.
f.
Turn the master switch ON and with the gear selector in down position, actuate the hand pump un-
til the door closes.
7-37. ADJUSTMENT OF LANDING GEAR SAFETY SWITCH. The landing gear safety switch, used to
activate the selector solenoid is located on the left main upper torque link, is adjusted so that the switch is
actuated in the last .250 ±. 125 inch of oleo extension.
a.
Place airplane on jacks. (Refer to Jacking, Section II.)
b.
Compress the strut until nine inches is obtained between the top of the gear fork and the bottom
of the gear housing. Hold the gear at this measurement.
c.
Adjust the switch down until it actuates at this point. Secure the switch.
d.
Extend and then compress the strut to ascertain that the switch will actuate in the last .250 ±
.125 inch of oleo extension.
e.
Remove airplane from jacks.
f.
Refer to Chapters 11 and 14 for right gear safety switch information.
7-38. LANDING GEAR WARNING SYSTEM.
7-39. REMOVAL OF GEAR WARNING SWITCHES. (Refer to Figure 7-14.) The gear warning switches
are located within the control pedestal, directly under the throttle controls. Each switch will actuate the
warning horn.
a.
The switches may be removed from their mounting brackets by the following procedure:
1.
Remove the top cover plates of the pedestal, one of which is forward of the control levers,
the other surrounds the levers, by removing their attachment screws.
2.
Remove the switch from its mounting bracket by removing the two screws that secure either
Revised: 3/11/81
LANDING GEAR AND BRAKE SYSTEM
2E23