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MECHANICAL INSTALLATION 110TB
3)Back off the coupling nut completely (Fig. 11) and thread on a backing nut with which to lock threads to the coupler. Hold the coupler up to the hanger bolt to estimate the half way point of the coupler, and set the backing nut to that height before
4)Always install and utilize all four points, and it should look like (Fig. 13). In this photo, the turnbuckles have been added to the ends of the rods. The closed eyebolt on the turnbuckle has been removed and replaced with the threaded rod. Note that the turnbuckle is stamped with an “L” to identify the load or live end. Observe the correct assembly procedure from rod to
5)It’s now a fairly simple procedure to place the subwoofer onto the awaiting hooks. Two people, on two separate ladders can now hoist the sub into place. When installed, it can easily be leveled with a few turns on the turnbuckles (Fig. 14).
6)If no suitable point exists directly above the desired location, you can use wire rope or chain to make connections that are not perpendicular to the suspension point(s). Under no circumstances should the angles exceed +/- 15 degrees from vertical. Make certain that you follow closely the instructions and regulations for the use of wire rope for overhead suspension. Serious injury could result if guidelines and safety margins are not closely obeyed.
Figure 8: Wire rope detailing suspension or seismic tether
Figure 9: Installed subwoofer top view, only two chains attached
Figure 10: Completed subwoofer installation. | Figure 11: Installing the hanger bolt | Figure 12: Installed hanger bolt |
