Lacava 0660 - Manual (Page 5)

LACAVA LLC 5
7. Apply a bead of silicone sealant onto the back edge of
the backplate and slide into place over the cartridge
body. Using a clean rag, wipe off any excess silicone.
8. Place the brass extension onto the cartridge and then
press the plastic pressure locking cap into place. Keep
both pieces in place by tightening the provided screw
with washer down through the center.
9. Press the control handle onto the plastic cap until it snaps
into place.
10. Turn on the water supply and check for any leaks.