CHAPTER V
OPERATOR MAINTENANCE
5-1 GENERAL.
This chapter contains preventive maintenance instructions essential for maintaining
the components of the searchlight. The instructions include inspection, cleaning and lubrication; opera-
tional testing of controls and 500 Watt xenon lamp and removal/replacement.
WARNING
High voltages exist in the searchlight electronics. Allow searchlight to cool off 15 minutes
before positioning Power Supply circuit breaker A1CB1 or ship’s power to OFF.
WARNING
The xenon gas in lamp is under pressure. It is recommended that a face mask
and gloves be worn when handling a lamp. Do not touch glass area of lamp.
Finger acid or dirt may cause lamp to break when ignited.
5-2
INSPECTION.
Periodic inspections of certain critical points of the 500 Watt Searchlight are nec-
essary to detect potential trouble before a malfunction occurs.
(1) Visual Inspection. At designated intervals, check for corrosion on electrical contacts, missing or
broken parts and other evidence of damage.
(2) Mechanical Inspection. Check for proper installation and tightness of head and yoke assem-
blies.
(3) Electrical Inspection. Check power cables and wiring for cracks, breaks and loose connections.
Inspect switches to ensure proper operation.
5-3 CLEANING.
Using non-abrasive liquid window cleaner, clean window and dry with lint-free cloth.
If reflector needs cleaning, remove xenon lamp and wipe reflector with lint-free cloth dampened with liquid
window cleaner (See Para. 5-6 for lamp removal procedures).
5-4
LUBRICATION.
(1)
Lubricate the following areas with non-detergent oil every three months: Around the eleva-
tion rod oil seal in the bearing housing.
(2) Once every six months (three months in salt water environment).
(a) Apply a heavy coating of marine grade bearing grease to the searchlight head pivot
bolts. Bolts should be removed to accomplish this.
(b) Also, remove the yoke from the base and apply a heavy coating of marine bearing
grease to the tapered roller bearings, bearing housings, surrounding internal areas,
under the lip of the rubber “BOOT” sliding seal and to the sliding stop.
5-5
TESTING.
Perform the following operations:
(1) Ignite xenon lamp and check that ignition occurs within 5 seconds. (See Chapter IV for operat-
ing procedures). If lamp fails to ignite within 1-3 seconds, refer to troubleshooting procedures,
Chapter VI.
(2) Adjust beam width (Chapter III) and perform check operation (Chapter IV).
(3) Check lever gear directional control to determine that the searchlight responds with proper move-
ment.
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