Replacing The Lamp - Federal Signal Commander 371-120 Manual De Instalación Y Mantenimiento

Installation and Maintenance Instructions

Replacing the Lamp

SHOCK HAZARD—To avoid electrical shock hazards, do not
connect wires while power is applied.
To replace the lamp:
1. Disconnect power to the light.
2. Remove the dome assembly by grasping the die-cast ring
attached to the dome and turning it counter-clockwise.
NOTE: If the dome assembly is difficult to remove, place a
screwdriver blade against one of the four bosses on the die-
cast ring attached to the dome. Gently tap the screwdriver
handle to loosen the dome assembly from the housing.
MAINTAIN WATERTIGHTNESS—To maintain the
watertight enclosure, do not damage dome or threads
while disassembling or reassembling the unit. Lubricated
threaded joints exposed for long periods of time may
attract small particles of dirt or other foreign materials. Re-
assemble joint immediately after performing maintenance.
3. Lift the connector from the lamp terminals.
4. Lift the spring clip at the top of the lamp and rotate the curved
lamp retainer toward the front of the lamp. Lift out the lamp.
5. Install the replacement lamp by placing the edge of the lamp
into the groove of the die-cast lamp holder. Rotate the lamp so
that its prongs point straight up.
6. Rotate the lamp retainer up until the spring clip snaps over the
edge of the lamp.
7. Replace the connector on the lamp terminals.
8. Replace the dome assembly by turning it clockwise until it is
seated securely against the gasket.
9.
Test the light for proper operation.
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Models 371-120 and 371L-120