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Simplex 4903 - Unit Base Attachment and Wiring Diagrams; Attaching Lens Assembly to Base Unit

Simplex 4903
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Attach Lens Assembly to Audible/Visible or Visible Only Base
3. (4903 AN only)
NOTE: The 4904-9104, 4904-9105, and 4904-9106 Flasher Units require a
4903-9501 Base.
A. Attach the lens assembly to the audible/visible base (H) by placing the four
wires from the Flasher or Lamp PC Board into the wiring channel (J) and
then snapping the lens assembly into place. See Figure 3.
(4904 Visible only)
NOTE: The 4904-9104, 4904-9105, and 4904-9106 Flasher Units require a
4904-9501 Base.
B. Attach the lens assembly to the visible only base (K) by placing the four
wires from the Flasher or Lamp PC Board through the base cut-out (L) and
then snapping the lens assembly into place. See Figure 4.
NOTE: To remove the lens assembly, push a small screwdriver into lens’ notches
(M) and pull lens assembly away from base. See Figure 3.
Figure 3
ATTACHING LENS ASSEMBLY TO 4903 AUDIBLE/VISIBLE
Figure 4
A-ITACHING LENS ASSEMBLY TO 4904 VISIBLE ONLY
4

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