11. Check the flap for full down travel to the degrees required in Figure 27-22. Should the travel not be as
that required, readjust the torque tube stop screw in or out as required. After readjusting the screw, it will be
necessary to review Steps 4 through 10.
12. Check operation of the flap and flap handle ratchet mechanism.
13. Install access plates and panels.
STALL WARNING.
The stall warning system consists of a lift detector which is electrically connected to a stall warning horn
and light. As stalling conditions are approached, the lift detector will activate the stall warning horn and light.
The light detector is located on the leading edge on the left wing. A tab will extend beyond the leading
edge at the point where the lift detector is mounted. With master switch in the ON position, gently lift tab; stall
warning horn and/or light should activate.
LIFT DETECTOR.
REMOVAL OF LIFT DETECTOR.
—NOTE—
The master switch must be off prior to performing any work on
the lift detector, warning horn or light. Place reference marks on
holding plate and wing skin for use when reinstalling wing.
1. Remove four screws holding the plate around the tab. The lift detector is fastened to this plate; remove
the unit from wing.
2. Mark the electrical wires and terminals to facilitate installation. Remove electrical wires from lift
detector; remove the lift detector from aircraft.
INSTALLATION OF LIFT DETECTOR.
1. Attach electrical wires to their correct terminals on the lift detector.
2. Position the lift detector with its mounting plate on the wing, determining that the sensor blade drops
down freely; secure in position with the four screws previously removed.
ADJUSTMENT OF LIFT DETECTOR.
The lift detector switch is adjusted at the factory when the airplane is test flow, and should not require any
further adjustment during the normal service life of the airplane. Should some type of service on the wing
require removing the switch, the following instructions will help in positioning the switch at the proper
position.
27-91-03
Page 27-42
Revised: July 13, 1983
1L13
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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