One Systems OPA-PTB - Manual (Page 9)

9
INSTALLING THE LINK
Figure 6 is a representation of the Link assembly. This assembly MUST be used
whenever the OPA-PTB and the OPALine or OPA-12 enclosure are being used
together. Each pan and tilt bracket is supplied with a link assembly.
Figure 6
UNDER NO CIRCUMSTANCES SHOULD THE DOWNWARD TILT OF THE
LOUDSPEAKER EXCEED 35 DEGREES FROM VERTICAL FOR THE OPA-PTB and
OPALine enclosure.
SECTION 5 LINK ASSEMBLY
Now the Link must be installed.
INSTALLING the OPA-PTB Bracket WITHOUT THE LINK IS NOT ALLOWED!
The Link (see figure 6) consists of quick links, a turnbuckle, and several links of steel
chain. The use of the chain pieces and quick links with the turnbuckle is based on the tilt
angle of the enclosure. The turnbuckle should always be used.
DO NOT SUBSTITUTE ANY PART OF THIS LINK ASSEMBLY!
The Link should be tightened by rotating the turnbuckle until there is
tension on the Link assembly. Do not over tighten. The purpose of the Link
is to provide support for the main OPA-PTB tilting bracket at the bottom of
the assembly. ONLY ROTATE THE TURNBUCKLE UNTIL THERE IS
VERY SLIGHT TENSION. DO NOT TIGHTEN BEYOND THIS POINT!
The back plate section of the OPA-PTB has eyebolts attached to it. There are two (2)
eyebolts on the back plate section of the OPA-PTB.
Make certain to use the appropriate combination of Link parts to ensure proper
connection between the OPA-PTB bracket assembly and the OPALine or OPA-12
enclosure. The required combination of link parts is determined by the down tilt angle of
the enclosure.