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C3422M-B (3/08) 3
3. Loosen the V-band attached to the back box and let it hang to the side.
Figure 3. Loosening the V-band
4. Prepare the lower dome for installation:
a. Remove the O-ring from the lower dome.
b. Lightly apply O-ring lubricant (supplied) to the O-ring.
c. Reinstall the O-ring in the groove on the trim ring.
NOTES:
• Repeated assembly of the unit, without exercising extreme caution to protect the integrity of the O-ring and sealing
surfaces, will result in increased refilling cycles. Plan carefully to minimize service accesses.
• Use the supplied O-ring lubricant to ensure an airtight seal when installing the lower dome.
Figure 4. Applying O-Ring Lubricant
5. Attach the back box leash to the lower dome, and let the lower dome hang to the other side of the back box.
B