Edwards Signaling 97DF - Manual (Page 3)

P-047550-0943 ISSUE 7
Figure 3. Mounting Gasket for Direct Surface Mounting of
97 Series Signals
Figure 4. Direct Surface Mounting of 97 Series Signals
Maintenance
WARNINGS
To prevent electrical shock, disconnect power and
allow five (5) minutes for stored energy to dissipate
before disassembling 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.
Cleaning
CAUTION
To prevent damage to the lens and dome, do not
use abrasive materials or cleaners.
Periodically clean the signal lens and dome (as applicable) to
maintain optimum light visibility. These items may be cleaned
with a soft cloth or sponge using water or a mild detergent solu-
tion. Ensure that the lens and dome are completely dry before
replacing.
Strobe Tube Replacement
Refer to Table 1 for the required strobe tube.
1. After disconnecting the power and waiting five minutes,
replace the strobe tube as follows:
a. 93 and 97 Series: Refer to Figure 1. Remove the three
screws from the skirt, grasp the lens and lift the skirt and
the lens straight up off of the signal base. Proceed to
step 2.
b. 94 Series: Refer to Figure 2. Remove the three screws
and the rubber gaskets holding the protective dome to
signal base. Lift the dome and rubber gasket off the
signal base. Loosen the three screws in the keyhole slots
in the base of the lens, turn the lens clockwise and lift it
straight up off the strobe tube support plate. Proceed to
step 2.
CAUTION
To prevent damage to the strobe tube, handle the
strobe tube only by the base.
2. Grasp the base of the strobe tube and pull firmly, or carefully
pry between the strobe tube base and the socket, to remove
the tube from the socket. Install the new strobe tube by
aligning the key on the strobe tube base with the slot in the
socket and then pressing the strobe tube base onto the socket.
Reassemble the signal.
3. Turn on the power and verify that the strobe operates.