TM 5-3610-253-14
(5) Reinstall emitter plate and secure in place with knurled nuts.
(6) Proceed to next step for adjustment of lamp focus.
i.
Adjust light barrier focus as follows:
(1) Using operator key, unlock safety lock.
(2) Turn main power switch to I position.
(3) Press control power on switch.
(4) Rotate each adjustment nut an equal amount until light beams show
a definite bulb filament pattern.
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