FRAME 3

TM 9-2350-222-20-2-1

3-4.

SYNCHRONIZATION AND BACKLASH CHECK OF 165 MM GUN WITH

GUNNER'S PERISCOPE M32C-RAMP METHOD (CONT)

Procedure

While looking through daylight eyepiece of gunner's periscope, adjust boresight knobs (1)

and (2) to line up aiming cross of reticle on same aiming point as gun (view A).

Turn slip scales of boresight knobs (1) and (2) to setting of 4.

While looking through telescope eyepiece, adjust elevation and deflection boresight knobs

(3) and (4) until aiming cross of reticle is on same aiming point as gun (view A).

Turn slip scale of boresight knobs (3) and (4) to settings of 3.

NOTE

At this point a boresight reference has been set up

between the gun and periscope.

GO TO FRAME 4

Para 3-4 Cont

3-13