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Do not remove lighthead when support arm is in down position. The balance mechanism will be
severely damaged.
b. Adjust the focus control to check that all
beam patterns will converge on a single spot
anywhere from two to six feet from lighthead face.
c. To adjust a misaligned LED module, loosen
the jam nut on the affected focus rod and turn the
adjustment screw as needed to achieve proper
alignment. See figure 1-6.
Figure 1-5.
Figure 1-6.
1-5. Focus Adjustment
As part of normal Preventive Maintenance, the
lighthead focus adjustment should be checked. If
an adjustment is necessary, use the following pro-
cedures:
a. Position the lighthead 42" from a white test
surface. Turn main power "ON" and set intensity on
low. Adjust focus control to widest pattern diameter
so each light beam can be seen individually. See
figure 1-5.
WARNING
42"
INDIVIDUAL
BULB SPOT
LIGHTHEAD
BULB
CONVERGENCE
TEST
SURFACE
JAM NUT
ADJUSTMENT
SCREW
FOCUS
ROD
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