Federal Signal ELECTRAFLASH 141ST-120 Hoja De Instrucciones página 3

D. Strobe Tube Replacement.
See figure 2. Disconnect power from the electrical circuit. Wait five (5) minutes before
removing the dome. Remove the two outer dome screws in the base. Carefully remove the
burnt out strobe tube, it is best to lift from both sides at once. Replace the new tube making
sure all three pins enter the board connectors; apply pressure slowly to the ends of the tube,
preferably the outer leads, when inserting the new tube. Place the outer dome back into
position, reinstall the two outer dome screws and apply power to verify proper operation.
E. Replacing the Strobe Circuit.
See figure 2. Disconnect power from the electrical circuit. Wait five (5) minutes before
removing the dome. Remove the two outer dome screws in the base assembly. Disconnect the
power from the board connector. Remove the two strobe board mounting screws positioned at
the outer corners of the strobe board. Place the new strobe board on top of the posts and
reinstall the strobe mounting screws.
Do not over tighten the mounting screws. Damage to the printed circuit board will result.
Connect the AC power leads to the 120/240VAC terminals of the two position connector by
inserting the stripped ends of the wire into the connector as far as they can travel. Make sure
supply lead insulation is flush with connector. If stranded wire is used, be sure that there are no
loose strands outside the connector plug that could touch the adjacent lead and cause a short
circuit. Tighten the terminal screws to secure the wires in the connector. Place the outer dome
back into position, reinstall the two outer dome screws and apply power to verify proper
operation.
F. Replacement Parts.
Description
Strobe Tube
Board Assy., 120V
Board Assy., 240V
Dome, Fresnel, Amber
Dome, Fresnel, Blue
Dome, Fresnel, Red
CAUTION
Part Number
K149128A
K2001195A
K2001195A-01
K8263079A
K8263079A-01
K8263079A-02
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