13.  
Flight test the airplane to insure proper operation of the gear warning horn with the gear up and power reduced below 14 ± 2 inches of manifold pressure.

REPLACEMENT OF LANDING GEAR UP/POWER WARNING SWITCH. (Refer to Figure 32-27)
When replacing the switch, it is important to determine how many washers are positioned between the micro switch and the bracket so that an equal amount are used during installation. This is necessary because the switch, when properly positioned, should be in the middle of the cams located on each throttle control lever.

2J14

C H A P T E R

L I G H T S

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CHAPTER 33 - LIGHTS 
TABLE OF CONTENTS / EFFECTIVITY 
CHAPTER/ SECTION  SUBJECT  GRID NO.  EFFECTIVITY 
33-00-00  GENERAL  2J19 
Description and Operation Troubleshooting  2J19 2J19 
33-10-00  FLIGHT COMPARTMENT  2J19 
Instrument and Panel Lights Removal of Dimmer Control Assembly Installation of Dimmer Control Assembly  2J19 2J19 2J19 
33-40-00  EXTERIOR  2J21 
Landing / Taxi Lights Removal Installation  2J21 2J21 2J21 
Recognition Lights  2J21 
Anti-Collision Strobe Lights Removal Installation Troubleshooting Removal of Strobe Power Supply Installation of Strobe Power Supply  2J22 2J22 2J22 2J23 2J24 2J24 

33-Cont./Effec. Page 33-3 Issued: April 1, 1997
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33-Cont./Effec. Page 33-4 Issued: April 1, 1997
GENERAL.
DESCRIPTION AND OPERATION.
External lighting comprises white wing tip strobe lights and recognition lights in the outboard leading edge of each wing, red and green wing tip navigation lights, and white landing/taxi lights located in the nose cone. Internal lighting consists of instrument panel backlighting, dual overhead flood lights and map lights.
TROUBLESHOOTING.
When checking the lighting system, the master switch must be on in order for the lights to operate. Insure that the circuit breaker which protects the light circuit that is being checked is pushed “IN”. If the light still fails to operate, replace the bulb.
FLIGHT COMPARTMENT.
The lighting comprises instrument panel backlighting with a dimmer control, dual overhead flood lights, a compass light and map lights.
INSTRUMENT AND PANEL LIGHTS.
REMOVAL OF DIMMER CONTROL ASSEMBLY.
Access to the dimmer control assembly is from beneath the instrument panel.
1.
Master Switch off.

2.
Disconnect the electrical connector from the assembly.

3.
Remove the two screws securing the assembly to the instrument panel.

4.
Remove the assembly from the airplane.

INSTALLATION OF DIMMER CONTROL ASSEMBLY.
1.
Master switch off.

2.
Position the assembly in the instrument panel with the control knobs inserted into their appropriate slots.

3.
Secure the assembly to the instrument panel with the two screws previously removed.

4.
Connect the electrical connector to the assembly.

5.
Master switch on.

6.
Check operation of dimmer control assembly.

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33-00-00 Page 33-6 Issued: April 1, 1997
EXTERIOR.
The exterior lighting comprises recognition lights, navigation lights, anti-collision strobe lights. and nose cone landing taxi lights.
LANDING / TAXI LIGHTS.
— Note —
Check and make sure that the ends of the bonding strap are securely attached: both to the light mounting bracket in the nose cone; and, to the fuselage.
REMOVAL OF LANDING / TAXI LIGHTS.
1.  
Ascertain that the master switch is off.

2.  
Remove the four screws which secure the nose cone. Lower the nose cone to gain access to the landing/taxi lights.

3.  
Remove the two wires on the back of the light noting their respective terminals.

4.  
Remove the three screws which secure the landing light assembly to the mount assembly paying particular attention not to lose the three springs located between the light assembly and the mount assembly.

5.  
Remove the two screws, washers and nuts from the light assembly and separate the light retainer ring and plate from the light.

INSTALLATION OF LANDING / TAXI LIGHTS.
1.  
Ascertain that the master switch is off.

2.  
Place light in retainer ring and secure with retainer plate held in place by two screws, washers and nuts.

3.  
Insert the three screws through their respective holes in the light assembly and place the springs into position on the screws.
　
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