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C3426M-E (3/09) 13
6. Reinstall the back box inside the cover. For vandal-resistant installations, rotate the back box to
position the conduit plug opposite the notch on the side of the cover. Use the two 8-32 x 0.375-inch
Phillips pan head screws and washers (removed earlier) to secure the back box to the cover.
Figure 4. 404 Plaster Ring Installation
6-32 X 0.75-INCH
OR 8-32 X 0.75-INCH
PHILLIPS PAN
HEAD SCREWS
(SUPPLIED)
8-32 X 0.375-INCH
PHILLIPS PAN HEAD
SCREWS WITH WASHERS
(SUPPLIED)
COVER
BACK BOX
CEILING/
WALL
404 PLASTER RING
(NOT SUPPLIED)