Extron electronics SF 3C LP User Manual page 13

6. Configure the locking arms for thicker ceilings (optional).
Three speaker locking arms are used to secure the speaker to ceiling tiles up to
2.25 inches (57.1 mm) thick. The locking arms are equipped with removable inserts that
accommodate ceiling tiles of up to 1.5 inches (38.1 mm) in thickness. For ceiling tiles
thicker than 1.5 inches, the locking arm inserts must be removed.
To remove the inserts:
Using a screwdriver, rotate the locking arm so that the insert can be accessed.
Figure 4. Accessing the locking arm insert
SF 3C LP and SF 3CT LP User Guide • Installation 7