Harman Martin VDO Fatron 20, User Manual

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Physical installation 19
Using couplers to align fixtures
Coupler accessories available from Martin® let you align multiple fixtures quickly and accurately. Do not use
couplers for weight-bearing.
Curving brackets
Warning! Do not use curving brackets to support the weight of fixtures: all fixtures must be supported by
sliding brackets or half-coupler clamps as described earlier in this chapter.
The adjustable curving brackets available from Martin® let you install fixtures in precisely aligned curves.
You can lock fixtures at angles of up to 60° from each other in an outward-facing curve as shown in Figure 9.
To install curving brackets:
1. See Figure 9. Note the positions of the half-coupler clamps A and curving brackets B . Note that if the
truss will be in a location where fixtures may cause injury or damage if they fall, you must also fasten a
safety cable attachment bracket to each fixture so that you can attach each fixture to a secure anchoring
point. Pass fasteners through the cutouts and into the channels in the back of fixtures in a suitable order
so that curving brackets, safety cable attachment brackets and half-coupler clamps can be arranged
correctly.
2. Fasten the curving brackets B to the fixture with the screws C supplied with the brackets.
3. Fasten half-coupler rigging clamps and safety cable attachment brackets as described earlier in this
chapter.
Joining fixtures end-to-end
Warning! Do not use linear end-to-end couplers to support the weight of fixtures: all fixtures must be
supported by sliding brackets or half-coupler clamps as described earlier in this chapter.
Linear couplers available from Martin® allow accurate end-to-end alignment of two or more VDO Fatron
fixtures.
Figure 9: Curving brackets
A
A
C
B
B
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