Cleaning The Lens - Christie J Series User Manual

Section 5: Maintenance
5. For added stability such as motion applications, fasten the security screws provided with the lens mount.
6. Use a 5mm hex driver to fasten the red security screws provided with the lens mount, or hand tighten the
lens retaining screws attached to the lens.
NOTES: 1) Recommended for heaviest lenses such as 0.73:1 and 1.2:1. 2) The red security screws MUST
be installed when hoisting the projector overhead, or installing the projector in an overhead position.
5.3

Cleaning the Lens

Check periodically. A small amount of dust or dirt on the lens has minimal effect on image quality. To avoid
the risk of scratching the lens, clean only if absolutely necessary.
Dust:
1. Brush most of the dust from the lens with a camel-hair brush and/or blow dust away with a dust-free
blower.
2. Fold a microfibre cloth smooth and gently wipe remaining dust particles from the lens. Wipe evenly with
the smooth portion of the cloth that has no folds or creases. Do not apply pressure with your fingers - use
the tension in the folded cloth itself to collect dust.
3. If significant dust is still bound to the surface, dampen a clean microfibre cloth with coated optics cleaning
solution (damp, not dripping). Wipe gently until clean.
Fingerprints, smudges, or oil:
1. Brush most of the dust from the lens with a camel-hair brush and/or blow dust away with a dust-free
blower.
2. Roll a lens tissue around a swab and soak it in coated optics cleaning solution. Tissue should be damp, but
not dripping.
3. Gently wipe the surface using a figure-8 motion. Repeat this motion until the blemish is removed.
5-6
Use of the lens red security screws or the lens retaining screws is required if
the projector is hoisted or installed in an overhead position.
J Series 2.0, 2.4 and 3.0 kW User Manual
020-100707-03 Rev. 1 (02-2014)