Piper PA-28-161, Maintenance Manual

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PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 1
Nov 30/06 3F11
33-10-00
FLIGHT COMPARTMENT
1. Instrument and Panel Lights
Instrument post lights, switch lights, and avionics lights are controlled by individual electronic dimmer
control assemblies, located on the right side of the airplane, on the back of the firewall. They are
operated by HI-LOW adjustment potentiometers located on the instrument panel below the pilot’s control
wheel. The instr ument post and switch lights power supplies are protected by a 7.5 amp
PANEL/SWITCH LIGHTS circuit breaker. The avionics power supply is protected by a 5 amp RADIO
LIGHTS circuit breaker.
2. Annunciator Panel Lights
Replacement
It is not necessary to remove the annunciator panel assembly to replace lamp bulbs. Simply “PUSH-IN”
on the function light until it “clicks,” and release pressure. The cover assembly will be partially ejected
from the lamp base assembly. Pull the cover from the base and rotate to expose the lamp bulbs. Replace
defective bulb(s) and reverse removal procedure. Select BATT MASTR switch ON; then depress “Test”
switch to verify lamp is functioning.
See Section 31-50-00 for functional Description, Operation and Troubleshooting of Annunciator.
3. Dimmer Control
A. Removal
(1) Place BATT MASTR switch in OFF position and disengage (pull) BATTERY FEEDER circuit
breaker
(2) Disengage (pull) PANEL/SWITCH LIGHTS or RADIO LIGHTS circuit breaker, as appropriate.
(3) Gain access to appropriate dimmer control, mounted on the rear of the firewall, from under the
right side instrument panel.
(4) Disconnect electrical plug from dimmer control.
(5) Remove machine screws holding dimmer control to the firewall.
(6) Remove dimmer control.
B. Installation
(1) Position dimmer control in proper location on back of firewall.
(2) Install machine screws holding dimmer control to the firewall.
(3) Connect electrical plug to power supply
(4) Engage (push in) PANEL/SWITCH LIGHTS or RADIO LIGHTS circuit breaker, as appropriate.
(5) Engage (push in) BATTERY FEEDER circuit breaker and place BATT MAST switch in ON
position.
(6) Check that lights associated with replaced dimmer control operate properly.
(7) Place BATT MAST switch in OFF position.