High End Systems SHOWGUN - Manual (Page 59)

CHAPTER 5
Maintenance and Troubleshooting
SHOWGUN ® User Manual 47
Cleaning the SHOWGUN ® Fixture
All glass parts should be cleaned with using a mild glass cleaner (containing no ammonia) and a
soft, lint-free cotton cloth.
You can use a diffusion cleaning applicator (HES
p/n 90901001) to access and clean the outside
of the Dual Acromat lens, lithos, color and soft
edge flags.
Microfresnel Lens
You can clean both sides of the Microfresnel lens without removing it from the fixture.
1. Using your DMX console, set the Zoom parameter to fully
extend the lens.
2. Disconnect the fixture from power and, after allowing the
fixture to cool, loosen two captive screws to remove the
the lamp housing door on the same side as the lamp
blower exhaust.
3. Rotate the head and clean the outside of the lens.
4. Reach inside the head to clean the back side of the lens.
5. Replace the door, and apply power to re-home the fixture.
Achromatic Lens
1. The Achromat consists of two air-spaced
optical lens components. Loosen the thumb
screw and, holding both lenses, remove
them from the fixture.
2. Separate to clean.
3. Reassemble the lenses. The double convex
fits against the concave side of the top lens.
Align the arrow to point toward the top lens.
4. Replace the lenses with the double convex
on the bottom toward the lamp.
5. Tighten the thumbscrew. The lens will fit
loosely.