Install the rough
Remove the upper mounting ring.
Screw the lower mounting ring and washer to their lowest position.
Insert the rough up through the hole.
Install the upper mounting ring. Tighten it as far as it will go without forcing it.
Rest the rough on the mounting surface. Tighten the lower mounting ring and washer. Tighten the tensioning screws.
upper mounting |
ring |
sealing ring |
washer |
lower mounting |
ring |
washer |
lower |
mounting |
ring |
tensioning |
screws |
Install the plaster shield.