SYNCHRONIZATION AND BACKLASH CHECK OF 165 MM GUN WITH
GUNNER'S PERISCOPE M32C-RAMP METHOD (CONT)
Have driver return tank to level ground.
While Looking through breech boresight hole (1) with binoculars (2), lower gun below
target then slowly raIse gun (without over travel) until cross formed by threads (3) on
gun muzzle is lined up with target aiming point (TM-10).
While looking through daylight eyepiece of gunner's periscope, adjust boresight knobs (4)
and (5) to align aiming cross of reticle on same aiming point as gun (view A).
Write down settings of boresight knobs (4) and (5).
GO TO FRAME 12
Para 3-4 Cont