Lubrication; Replacing A Color Filter - Martin MAC III Profile User Manual

Cleaning the fixture
To clean the head:
1. Disconnect the fixture from power and allow the components to cool for
2 hours 45 minutes.
2. Remove both head covers by loosening their quarter-turn retaining
screws (see Figure 20).
3. Vacuum or gently blow away dust and loose particles inside the head
with compressed air.
4. Carefully clean the optical components, but note that special precautions
apply to the gobos (see "If no further service work is to be carried out,
reinstall the top cover with its safety wire and release the tilt lock." on
page 40). Remove smoke and other residues with cotton swabs or
unscented tissues moistened with isopropyl alcohol. A commercial glass
cleaner may be used, but residues must be removed with distilled water.
Clean with a slow circular motion from center to edge. Dry with a clean,
soft and lint-free cloth or compressed air. Remove stuck particles with an
unscented tissue or cotton swab moistened with glass cleaner or distilled
water. Do not rub the surface: lift the particles off with a soft repeated
press.
5. Remove dust from fans and air vents with a soft brush, cotton swab, vacuum, or compressed air.
6. Reinstall the head covers.

Lubrication

The MAC III Profile does not require lubrication under normal circumstances. The slides for the zoom and
focus lens cars are lubricated with a long-lasting teflon-based grease that can be reapplied by a Martin
service partner if necessary.

Replacing a color filter

Note: Wear cotton gloves while handling color filters and use only genuine Martin filters.
1. Power the lamp off but leave the fixture powered on with fans running and allow it to cool.
2. The top of the head is above the text on the lamp cover. Lock the head in a convenient position for
access to the top of the head.
3. Remove the two quarter-turn retaining screws (see Figure 20) from the top cover and lift it away from the
head. Let the cover hang on its safety wire or unclip the safety wire and remove the cover completely.
4. See A in Figure 21 on page 41. Rotate the color wheel until the filter you want to change is accessible.
Lift the filter away from the color wheel slightly to release it, then grasp it by the edges and remove. If
your fingers are too large, protect the glass with a piece of paper that has been folded several times and
grasp the filter with needle nose pliers.
5. To insert a filter, slide it under the retention spring until it snaps into place.
6. If no further service work is to be carried out, reinstall the top cover with its safety wire and release the
tilt lock.
40 MAC III Profile user manual
Figure 20: Head cover
screws