FRAME 9

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

SYNCHRONIZATION AND BACKLASH CHECK OF 165 MM GUN WITH

3-4.

GUNNER'S PERISCOPE M32C-RAMP METHOD (CONT)

FRAME 9

Step

Procedure

Repeat frames 1 through 3 to boresight gun to periscope.

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

and (2). Reticle aiming cross should move a minimum elevation of 2 mils up, 5 mils

down, and a minimum deflection of 4 mils left, and 4 mils right. If reticle aiming cross

fails to move the minimum amount of deflection, notify support maintenance.

If reticle aiming cross fails to move the minimum amount of elevation adjust eccentrics

on 11 inch arm (para 3-7) until aiming cross of gunner's periscope daylight reticle is on

same aiming point as gun.

Insure that Gunner's Panel ELEV/TRAV POWER switch (3) is set to OFF.

GO TO FRAME 10

Para 3-4 Cont

3-20