Edwards Signaling 51 Series - Manual (Page 2)

P-047550-1020 ISSUE 5
b. Install the base on the conduit. Now proceed to Step 3
for wiring connections.
Mounting on a 4" (102 mm) Octagon Box (Indoor
Installation Only)
a. Remove the two knockouts for mounting screws from
the bottom of the signal base.
b. Route the field wiring from the required power source
for the signal (refer to its label for the voltage rating)
through the center hole in the base.
c. Fasten the base to the octagon box (not supplied) by
installing the screws supplied with the box through the
holes in the base. Now proceed to Step 3 for wiring
connections.
3. Using wire nuts (not supplied), connect the signal's red wire
to the positive (+) power source lead and connect the black
wire lead to the negative (-) power source wire. Then neatly
place the connected wires inside the base and reassemble the
signal on the base.
4. Turn on power and verify that the signal operates properly.
Maintenance
WARNINGS
To prevent electrical shock, ensure that power is
disconnected before installing the signal.
To prevent leakage and potential electrical shock,
use care when disassembling the signal to prevent
tearing of the permanently affixed gaskets provided
for weatherproofing.
Lamp Replacement
Refer to the Replacement Parts table below for the required type
of lamp. After disconnecting power, replace the lamp using the
following procedure:
See Figure 1. Remove the three screws from the top of the skirt
and lift off the skirt and lens. Remove the old lamp. Insert the
new lamp.
Horn Replacement
Refer to the Replacement Parts table below for the required horn.
After disconnecting power, remove the old horn and attach the
new one. Reattach the horn module wiring to the flasher module
wiring.
Cleaning
The signal lens should be periodically cleaned to maintain opti-
mum light visibility. It may be cleaned with a soft cloth or sponge
using mild detergent. Dry the lens completely before replacing.
Troubleshooting
If the lamp fails to operate, check that power is on. If power is
on, either the lamp or the solid state flasher module should be
replaced. Replace the lamp first as directed in the Lamp Re-
placement section above. If the replacement lamps also fails to
operate, the flasher module must be replaced. Refer to the Re-
placement Parts table below for the required flasher. Instructions
for replacing the flasher are provided with the flasher.
NOTE: If both the lamp and horn fail to operate, the flasher
module must be replaced.
CAUTION
To prevent damage to the lens, do not use abrasive
materials or cleaners.
Replacement Parts
Replacement lamps, horns and lenses for the 51 series signals may be obtained from your Edwards distributor.
Component Used On Replacement Part
Lamp - 32W, double contact, bayonet base 51(*)-E1 P-041695-0097 or Ind. Trade No. 94
Lamp - 32W, double contact, bayonet base 51(*)-G1 P-041695-0099 or Ind. Trade No. 1638
Horn - 12/24V DC 51(*)-E1 or 51(*)-G1 P-047570-0743
Solid state flasher module - 12/24V DC 51(*)-E1 or 51(*)-G1 P-041917-0028
Lens (Amber, Blue, Clear, Green, Magenta or Red) 51(*)-E1 or 51(*)-G1 92-L(*)
*Specify lens color by adding one of the following letters to the catalog number: A - amber, B - blue, C - clear, G - green,
M - magenta or R - red.