Edwards Signaling 52 - Manual (Page 3)

P-047550-0541 ISSUE 13
Figure 3. Catalog Series 51 Flashing Lights
with Horn
Figure 4. Catalog Series 52 Rotating Lights
WARNING
To prevent electrical shock, ensure that power is
disconnected prior to disassembly.
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Should the lamp fail to operate, check that power is on.
If power is on, either the lamp or the solid state flasher
module (the module is not used in the 52 series signals)
requires replacement. Replace the lamp first as directed
in the "Lamp Replacement" section that follows. Should
the replacement lamp also fail to operate, the flasher
module must be replaced. Refer to Table 3 for the re-
quired replacement flasher. Instructions for replacing
the flasher are provided with the flasher.
NOTE: Should both the lamp and horn fail to operate
in a 51 Series signal, replace the flasher
module.
Maintenance Maintenance Maintenance Maintenance Maintenance
CAUTION
To prevent damage to the lens and/or dome, do not
use abrasive materials or cleaners.
Lamp Replacement
Refer to Table 3 for the required lamp. After discon-
necting power, replace the lamp using one of the fol-
lowing applicable procedures:
49 Series: See Figure 1. Remove the screw in the clamp
ring, remove the ring, and lift off the dome. Loosen the
three screws in the base of the lens and turn the lens
clockwise to remove. Replace the lamp.
50 and 50SIN Series: See Figure 2. Remove the three
screws from the top of the trim ring and lift off the lens
and ring. Replace the lamp.
51 Series: See Figure 3. Remove the three screws from
the top of the skirt and lift off the lens and skirt. Re-
place the lamp.
52 Series: See Figure 4. Remove the screw in the clamp
ring, remove the ring, and lift off the dome. Replace
the lamp.
Cleaning
The signal's lens and/or dome should be peridodically
cleaned to maintain optimum light visibility. These items
may be cleaned with a soft cloth or sponge using mild
detergent. Ensure that the lens or dome is completely
dry before replacing.
WARNINGS
To avoid risk of injury, do not remove or insert lamp
when unit is energized.
To avoid risk of injury, install lens before energizing
the unit.
WARNING
To prevent electrical shock, use care when
disassembling the signal to prevent tearing of the
permanently affixed gaskets provided for
weatherproofing.