11-77. STALL WARNING HORN AND LIFT DETECTOR. This system consists of a lift detector which is
electrically connected to a stall warning horn. The following ground check can be performed to determine that
the lift detector is functioning properly.
The left detector is located on the left wing. A tab will extend beyond the leading edge. With the master
switch ON gently lift tab. Stall warning horn should activate.
11-78. REMOVAL OF LIFT DETECTOR.
—NOTE—
The master switch must be off prior to performing any work on the lift
detector or warning horn.
a. Remove the four screws holding the plate around the tab. The lift detector is fastened to this plate; remove
the unit from wing.
b. Identify the electrical leads to facilitate reinstallation and disconnect the electrical leads.
11-79. INSTALLATION OF LIFT DETECTOR.
a. Attach the electrical leads to the appropriate terminals of the lift detector.
b. Position the lift detector with its mounting plate on the wing, determining that the sensor blade of the unit
drops down freely, and secure in position with the four screws previously removed.
11-80. ELECTRICAL SWITCHES AND CIRCUIT BREAKERS.
11-81. DESCRIPTION. The switches are of the rocker type. The switches are mounted in the middle of the
instrument panel. The circuit breakers are single hole mounting, push button type with manual reset; they must
be reset by the pilot whenever tripped. They are on a circuit breaker panel on the lower right hand corner of the
instrument panel.
11-82. REMOVAL OF ELECTRICAL SWITCHES.
a. For a particular switch removal, remove the screw above and screw below the switch on the front of the
instrument panel.
b. From behind the instrument panel remove the switch, and disconnect the electrical connections.
—NOTE—
Make note of the placement of the electrical leads to facilitate
reinstallation.
11-83. INSTALLATION OF ELECTRICAL SWITCHES.
a. Reconnect electrical leads with mounting screws in their proper place.
b. Insert switch into its designated slot on the instrument panel and secure with the two screws previously
removed.
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
ELECTRICAL SYSTEM
2E3