Piper Arrow IV, Maintenance Manual

Page: 425 / 752

REPLACEMENT OF ANNUNCIATOR PANEL LIGHT BULBS.
Replacement of a bulb does not require removal of the annunciator panel. The lenses are designed to be a
friction fit with the bulbs inserted into the back side of the lens. To replace a defective bulb, simply pull the
corresponding lens out of the annunciator panel. Withdraw the defective bulb from the lens and replace with a
new bulb. Align the key on the lens with the keyway in the annunciator panel socket and press the lens into
place.
REMOVAL AND INSTALLATION OF VACUUM SENSOR SWITCH.
Refer to Chapter 37 of this Maintenance Manual.
REMOVAL AND INSTALLATION OF OIL PRESSURE SENSOR SWITCH.
Refer to Chapter 79 of this Maintenance Manual.
EXTERIOR.
DESCRIPTION.
The landing and taxi light is contained in one light bulb. It is a 100 watt unit located within the nose cowl
section. The light is controlled by a switch to a l0 amp circuit breaker. The three navigation lights are
controlled by a single switch and a 10 amp circuit breaker. Optional anti-collision strobe lights may be
mounted on each wing tip in the same assembly with the navigation lights. These units are rated to flash at
approximately 50 times per minute.
REMOVAL AND INSTALLATION OF LANDING LIGHT.
1. Remove the screw securing the clamp to the bottom of the lamp.
2. Pull the lamp out and remove the two electrical leads connected to it.
—NOTE—
Take note of the wire placement on the lamp to facilitate
reinstallation.
3. To install the lamp, reconnect the electrical leads and insert the lamp into position, then position
the clamp at the bottom and secure with appropriate screw.
33-40-02
Page 33-06
Revised: July 24, 1981
2G2
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL