C1475M-B (8/05) 9

Lower Dome Installation

1. Snap the clip, on the end of the trim ring leash, into the hole on the lip of the back box.
2. Line up the snaps on the trim ring with the mounting screws on the back box. Snap the trim ring into the plastic snap washers on the
mounting screws.
Figure 6. Installing the Lower Dome

Maintenance

Clean the acrylic dome as needed. Be careful not to scratch the surfaces of the dome.
Exterior surface: Clean the dome’s exterior surface with a nonabrasive cleaning cloth and agent that is safe for acrylic plastic. Either liquid or
spray cleaner/wax suitable for fine furniture is acceptable.
Interior surface (except chrome or gold): Clean the same as the exterior surface.
Interior surface (chrome or gold): The inside surface of a chrome or gold dome is easily scratched. Use the following precautions to maintain
the dome’s surface.
a. Always handle the dome from the outside of its circular flange.
b. Never touch the coated inside surface. The acid in your fingerprints will eventually etch the coating if the fingerprints are not carefully
removed according to the recommended cleaning procedure in item e.
c. If dust or other contaminants accumulate on the dome’s interior, remove the debris with compressed air. Compressed air cans are
available from photographic equipment or electronic supply dealers.
d. If heavy residue accumulates and cannot be removed with air pressure, rinse with water and immediately dry with air pressure so that
water spots will not remain. Avoid wiping the coated surface with direct hand pressure–it will easily abrade unless extreme care is
taken. Once scratched, the dome cannot be repaired.
e. If internal wiping is necessary, avoid hand rubbing. Instead, make a wick as follows:
Use a very soft paper towel. Roll a section into a tightly wound tube. Tear the tube in half, and wet the fuzzy end of the wick with a
solution of isopropyl alcohol diluted with water. Hold the dome with its opening facing downward and wipe the interior of the dome
with the wet end of the wick. Use a circular motion, starting from the outside and spiraling into the center. Use a new wick for each
two passes over the dome.

SERVICE MANUAL

If you need to service your unit, obtain a service manual in one of the following ways:
•Go to Pelco’s web site at www.pelco.com and find service manual C1458SM-A.
•Contact Pelco’s Literature Department and request service manual C1458SM-A.