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Maintenance 7-5
#3 Mirror and Focus Lens
You must remove the front cover to the Focus Carriage to gain access to the #3 Mirror and the
Focus Lens. To do this, hold the front cover with one hand and with the other hand, remove the
three(3) thumbscrews that attach the front cover to the Focus Carriage, and pull the front cover
straight out. You will notice that the #3 Mirror and the Focus lens are both mounted to the front
cover. Refer to the diagram below.
The #3 Mirror and the Focus lens are both glued to a metal bracket and the metal bracket is
attached to the front plate with Phillips head screws. It is not necessary to detach the bracket
from either optic in order to clean them. Simply tilt the front cover at enough angle so that you
can apply the Lens Cleaning solution directly to the #3 Mirror and to the Focus Lens. Flood the
surfaces with the solution. If heavy debris is present, let the solution soak in for a minute. Roll a
fresh cotton swab across the #3 Mirror to dry it off. Remember that it is okay if a small amount
of lint from the cotton swab remains on the mirror. Repeat this procedure for the Focus lens and
always use a fresh swab.