Harman Martin Exterior Wash 200 Series, User Manual

Page: 11 / 40

Martin
®
Exterior Wash
TM
200 Series User Manual 11
Referring to the illustration below, install a 12 mm (1/2 inch) shaft diameter bolt passing through the center
hole
A . Then install either two additional 12 mm bolts passing through holes B or two bolts with 8 mm
(5/16 inch) shaft diameter passing through slots C to anchor the fixture. Installing bolts through slots C will
give approximately 90° of pan adjustment. If additional bolts are required to mount the fixture safely, install
them passing through slots
C or holes B .
Suspending from a truss
In temporary installations, you can suspend the fixture from a rigging truss by means of two rigging clamps
that are approved for the weight they support securely fastened through holes
B in the yoke base (see
illustration above). The fixture must be installed hanging downwards only.
When using rigging clamps, secure the fixture with a safety cable (or other secondary attachment) that is
approved for the weight of the fixture so that the safety cable will hold the fixture if a rigging clamp fails.
Loop the safety cable through the safety cable attachment point on the back of the fixture (see ‘Fixture
overview’ on page 9). Remove as much slack as possible from the safety cable (by looping it more than
once around the truss chord, for example).
Check that the truss and all fasteners used can support 10 times the weight of all the fixtures and
equipment that they will support.
Adjusting tilt
Warning! The fixture can become hot. Wear heat-resistant gloves if you adjust the
aim of the fixture when it is (or has recently been) powered on.
Tilt adjustment can be carried out with the fixture powered on
as follows:
1. Put on heat-resistant gloves.
2. See illustration on right. Loosen, but do not remove, the tilt
lock screws (arrowed) on both sides.
3. Tilt the fixture to the desired angle and retighten the
screws.
Figure 2. Tilt adjustment
Figure 1. Mounting yoke base