TM 1-1500-204-23-6
ZERO SIGHTS (ZERO COMMANDER'S PERISCOPE TO CALIBER .50bO MACHINE GUN) - Continued
45.
Turn slipscales (AY) on elevation knob (AV) and deflection knob
(AW) so each reads 4.
46.
Move shutter lever (AM) right to close shutter and turn off
passive power.
TA252819
Change 1 2-468.2