Piper SENECA II - Page 409

7-30. LANDING GEAR LIMIT SWITCHES.
NO
TE: All adjustments of the limit switches should be made with the airplane on jacks. Do not bend
actuator springs mounted on the limit switches.
7-31. ADJUSTMENT OF NOSE GEAR UP LIMIT SWITCH. The gear up limit switch is mounted on a
bracket attached to the lower inner left tubular member of the nose gear mount, adjacent to the gear
roller track assembly or mounted on the stop assembly. (Refer to Figure 7-2.)
a. To facilitate adjustment of the limit switch, disconnect gear doors.
b. Turn the master switch on; move gear selector switch to the gear up position and raise the landing
gear. Turn the master switch OFF.
c. Block the nose gear in the up position and slowly pull the free-fall knob away from the instrument
panel. This will relieve hydraulic pressure and permit the main gear to drop.
d. Loosen the attachment screws of the switch and rotate the switch toward the actuator tang until the
switch is heard to actuate. Move the up limit switch upwards .02 to .04 inches after actuation.
Retighten the switch attachment screws. Remove the block from under the gear and allow it to
extend slowly.
e. Turn master switch on; raise gear and determine that gear lights function properly.
PIPER SENECA II SERVICE MANUAL
VII - LANDING GEAR AND BRAKE SYSTEM 04/30/07
1K22
Figure 7-9. Adjust Nose Gear
Down Limit Switch
Figure 7-10. Adjust Main Gear
Down Limit Switch
1. DOWNLOCK SPRING
A334
884
2. ACTUATING CYLINDER
3. DOWN LOCK LINK ASSY.
4.
DRAG LINK ARMS
5. MICRO SWITCH