Landing Gear Safety (Squat) Switch Adjustment; Landing Gear Warning (Throttle) Swithe Location; Landing Gear Up/Power Reduced Warning Switch Adjustment - Piper PA-44-180 SEMINOLE Maintenance Manual

ADJUSTMENT OF LANDING GEAR SAFETY (SQUAT) SWITCH.
The landing gear safety switch, located on the left main gear housing is adjusted so that the switch is actu-
ated within the last quarter of an inch of gear extension.
1. Compress the strut until 7.875 inches is obtained between the top of the gear fork and the bottom of
the gear housing. Hold the gear at this measurement.
2. Adjust the switch down until it actuates at this point. Secure the switch.
3. Extend and then compress the strut to ascertain that the switch will actuate within the last quarter of an
inch of oleo extension.
LANDING GEAR WARNING (THROTTLE) SWITCHES.
LANDING GEAR UP/POWER REDUCED WARNING SWITCH.
This switch will automatically activate a warning horn when approaching for a landing with the landing
gear up and the throttles pulled below 14 inches of manifold pressure.
SWITCH LOCATION.
On PA-44-180/180T models not equipped with the gear warning mute system, the landing gear up power
reduced warning switch is located in the control quadrant behind the throttle levers. Access to the switch is
from below and behind the quadrant. (Refer to Figure 32-25, Sheet 1 of 2.)
On models equipped with the gear warning mute system, the landing gear up power reduced warning switch
is located in the control quadrant behind the throttle stop plate. (Refer to Figure 32-25, Sheet 2 of 2.)
Refer to Chapter 91 for electrical schematic of the Landing Gear System.
ADJUSTMENT OF LANDING GEAR UP/POWER REDUCED WARNING SWITCH. (When N o t
Equipped with Mute Switch)
When adjusting switch fly the airplane at approach speed 1000 feet AGL. (Refer to the Pilot's Operating
Manual.) Use the following procedure:
1. With the aid of a qualified pilot, fly the airplane to an elevation of 1000 feet above the ground and
come to approach speed with propellers set for high rpm. Retard the throttles to 14 + 2 inches of
m a nifold pressure and mark the quadrant cover adjacent to the throttle levers, in such a manner so that
the levers can be returned to the same position after the airplane is landed and the engines shut down.
2. Place the airplane on jacks and retract the landing gear.
3. Position the throttle levers at the location which gave the 14 + 2 inches of manifold pressure per Step
1.
4. With the master switch turned on, loosen the two mounting screws securing the micro switch to the
bracket. Move the switch in the direction necessary to make the warning horn operate and tighten the
mounting screws.
5. With the warning horn operating, lower the landing gear to determine whether the horn ceases to
o p e rate when the gear are down and locked. Turn master switch OFF and remove airplane from jacks.
6. Flight test the airplane to insure proper operation of the gear warning horn with the gear up and power
reduced below 14 + 2 inches of manifold pressure.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
2H24
32-62-03
Page 32-52
Revised: June 20, 1995