Federal Signal Electraray 224XST Instructions D'installation Et D'entretien page 14

Installation and Maintenance Instructions
f. Loosen the screws in the retaining ring approximately 1/2 turn.
g.
Turn the retaining ring counter-clockwise approximately
1/2 inch (13 mm), and lift it from the light.
h. Lift the interior lens from the light.
i. Remove and retain the screws and heat-sink clip (DC models
only) that secure the circuit board to the mounting plate.
j.
Remove the power connector(s) from the circuit board.
k. Remove the circuit board.
2. Install the new circuit board:
a. Since some strobes are polarity sensitive, connect matching
colored wires together.
CIRCUIT BOARD DAMAGE: Do not overtighten the
mounting screws. Damage to the printed circuit board
will result.
b. Secure the new circuit board to the mounting plate with the
screws. For the DC circuit board, reattach the heat-sink clip.
c.
Install the strobe tube as described on page 12. Ensure that
the strobe tube is fully seated in the socket.
d. Reinstall the interior lens.
e. Reinstall the retaining ring, turning it clockwise approximately
1/2 inch (13 mm), and secure it with the screws.
f.
Before replacing the dome, ensure that the gasket is properly
seated and shows no signs of cracking or other deterioration.
Replace the gasket if it is damaged or shows signs of
deterioration. (For replacement parts, see Table 1).
g.
Place the dome over the base, aligning the recesses inside the
dome lip with the four pins on the base.
Electraray
14
Models 224XST, 225XST, and 225XST-I
®