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Do not stand the fixture freely on a surface or leave it where it can be moved or fall over. Ensure
that the installation surface or structure and all fasteners used can safely bear at least 10 times the
weight of all the fixtures and equipment they will support.
Installing on a rigging truss
It is possible to install the fixture temporarily on a rigging truss or similar support. If you do this,
fasten two approved rigging clamps to the mounting yoke with two grade 8.8 strength M12 bolts
fastened through holes B in the mounting yoke base (see illustration at bottom of page) and
suspend the fixture using the two clamps. Install the fixture hanging vertically downwards only.
Secure the fixture with a safety cable as described in 'Secondary attachment' on page 12.
Avoiding galvanic corrosion
The fixture and mounting bracket are manufactured in corrosion-resistant anodized aluminum.
Avoid mounting the fixture in direct contact with other types of metal, as this can cause galvanic
corrosion. When fastening to a metal that is not aluminum:
●
Use an electrically insulating material (such as rubber or plastic) or coating between the
mounting bracket and the other metal.
●
Use a non-conductive coating such as Delta Seal on fasteners (screws, bolts, washers, etc.)
where they come into contact with the mounting bracket.
Fasteners
The type of fasteners used will depend on the installation, but use a minimum of three high-
strength corrosion-resistant fasteners that are suitable for the installation environment and
application. We recommend that all fasteners are stainless steel A4-70 grade according to ISO
3506 or steel grade 8.8 according to ISO 898-1 or better.
Install washers between the head of each fastener and the yoke base. If you use nuts, use self-
locking type only and install washers under the nuts.
Anchoring to a surface or structure
The fixture's mounting yoke base must be securely anchored to a flat surface on a wall, pedestal,
structural beam or other suitable support. The yoke allows the fixture to be manually panned and
tilted for beam aiming adjustment.
To anchor the fixture to a surface:
1. See illustration below. Fasten a 12 mm (1/2 inch) shaft diameter bolt to the surface through the
center hole A in the mounting yoke.
2. Fasten two bolts with 8 mm (5/16 inch) shaft diameter to the surface with one bolt passing
through each of the curved slots C to anchor the fixture. This will give approximately 90° of
pan adjustment.
Sides of fixture
vertical: OK
Exterior Projection 500 User Manual
Sides of fixture not
vertical: Not OK
11
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