Federal Signal 27XST Instrucciones De Instalación Y Servicio página 6

HANDLE STROBE LAMPS CAREFULLY — Strobe lamps get hot
enough to burn you. Always allow these lamps to cool before handling
them. Strobe lamps are also pressurized and, if broken, can result
in flying glass. Failure to follow this warning may result in personal
injury.
DO NOT TOUCH LAMP WITH BARE HANDS — Oil deposits on the
glass portion of the strobe lamp can cause the glass to fracture during use.
If you are unsure if the glass has been handled without gloves, clean the
glass using a soft cloth and isopropyl alcohol before installing the lamp.
EXPLOSION HAZARD — The effectiveness of the explosion–proof
enclosure must be maintained. Do not damage the dome or threads
while disassembling or reassembling unit. Lubricated joints exposed
for long periods of time may attract small particles of dirt or other
foreign materials. Body and cover joints should be reassembled im-
mediately.
To change the flash tube, proceed as follows:
1. Disconnect power.
2. Remove the glass dome assembly from the main casting by rotating the
dome assembly counterclockwise.
3. Loosen the lens-clip screw (1−3 turns) and rotate the clip 90°. Remove
the lens to expose the flash tube.
4. With the lens removed, use a rocking motion and gently remove the tube.
Replace the flash tube with the appropriate replacement part listed in the replacement
parts list in paragraph IV. F. Replacement Parts.
5. Place the lens in position under two hold-down tabs. Rotate the clip into
place on the lip of dome.
6. Reassemble the unit by threading the glass dome assembly into the
main housing until tight.
B. Fuse Replacement for 120 Vac and 240 Vac Units
To replace the fuse:
1. Disconnect power.
2. Remove the glass dome assembly from the main casting by rotating the
dome assembly counterclockwise.
3. The fuse is positioned on the component side of the PC board mounted
in fuse clips. For easy removal, pry one end of the fuse out of the clip with an insulated-
handled screwdriver.
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