Service and maintenance 37
3. See Figure 17. On each side of the base, pinch the air filter
holders in from the sides as illustrated, then pull the center of
the holders outwards to unclip and remove them.
4. Clean the air filter elements. If they are saturated with smoke
fluid, soak them in warm, soapy water and blot dry. If the filters
cannot be cleaned completely or are not in perfect condition,
replace them with new items.
5. Pinch the base filter holders in from the side and engage the
ends of the filter holders their slots to clip them back into
position.
6. See Figure 18. Engage the three tabs in the head filter
holders in their slots in the head, pinch the foremost corners
of the filter holder together slightly and press them into the
head to clip them back into position.
7. Check that all filter holders are correctly installed so that there
is an airtight seal around all their edges.
Cleaning the fixture
To clean the head:
1. Power the lamp off, allow components to cool for 2 hours 45 minutes and
disconnect the fixture from power.
2. Remove both head covers by loosening their quarter-turn retaining screws
(see Figure 19).
3. Vacuum or gently blow away dust and loose particles inside the head with
compressed air.
4. Carefully clean the optical components. 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.
Figure 17: Base air filters
Figure 18: Reinstalling head air filters
Figure 19: Head
cover screws
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