One Systems OPA-PTB - Manual (Page 7)

7
The loudspeaker and loudspeaker section of the bracket may now be joined to the wall
section and the required pan and tilt angles selected. This is a two person job and
extreme care should be exercised to avoid serious injury.
USE EXTREME CAUTION! The loudspeaker is heavy and it is likely that the desired
mounting location is high in the air. This process should never be attempted by a single
person.
TWO OR MORE PEOPLE ARE REQUIRED TO MOUNT THE LOUDSPEAKER
ENCLOSURE TO THE OPA-PTB bracket. Safety harnesses should always be worn
when working from an elevated platform.
The OPALine or OPA-12 enclosure, with loudspeaker bracket attached, should be
mounted to the wall section of the OPA-PTB.
The M10 tilt pivot bolt should be inserted first and secured, but not completely tightened
using the nylon insert M10 nuts that are supplied. The tilt pivot bolt is shown below in
Figure 5. At this point the M10 tilt aiming bolt (Figure 5a) should be inserted into the
desired angle and the nylon insert nuts applied. Then the tilt axis bolts should be
partially tightened. (see below for FULL tightening recommendations after the aiming
bolt has been set to the proper angle).
Figure 5 showing the tilt pivot bolt. This must be inserted first.
Figure 5a below shows the tilt aiming bolt. This can only be inserted AFTER the tile
pivot bolt is installed and partially tightened!