Piper Warrior III - DIMMER CONTROL POTENTIOMETER; REMOVAL; INSTALLATION

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 2
Nov 30/06
3F12
33-10-00
4. Dimmer Control Potentiometer
A. Removal
(1) Place BATT MAST 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) Remove dimmer control potentiometer control knob by loosening set screw with appropriate
size allen wrench.
(4) Remove nut securing dimmer control potentiometer to instrument panel. Potentiometer should
now hang down below bottom of panel.
(5) Mark wires attached to back of dimmer control potentiometer for proper location. Unsolder
wires from back of dimmer control potentiometer.
(6) Remove dimmer control potentiometer.
B. Installation
(1) Solder wires to proper contacts on back of new dimmer potentiometer.
NO
TE: Check that potentiometer control is turned fully counterclockwise.
(2) Position potentiometer in proper location and insert from back of instrument panel. Check that
key lugs on switch align with key holes in back of panel.
(3) Install nut securing potentiometer to face of instrument panel.
(4) Install control knob. Check that knob pointer is in appropriate position. Tighten allen screw.
(5) Engage (push in) PANEL/SWITCH LIGHTS or RADIO LIGHTS circuit breaker, as appropriate.
(6) Engage (push in) BATTERY FEEDER circuit breaker and place BATT MAST switch in ON
position.
(7) Check that lights associated with replaced potentiometer control operate properly.
(8) Place BATT MAST switch in OFF position.