SYNCHRONIZATION AND BACKLASH CHECK OF 165-MM GUN WITH GUNNER'S PERISCOPE M32C6/M32CE1-RAMP METHOD

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

3-4.

SYNCHRONIZATION AND BACKLASH CHECK OF 165-MM GUN WITH GUNNER'S

PERISCOPE M32C6/M32CE1-RAMP METHOD

NOTE

This procedure can be performed using the M32C or

M32CE1 periscope. Whenever the M32C is mentioned it

will also be in reference to the M32CE1. Only the M32C

periscope is shown.

TEST EQUIPMENT: Gunner's Quandrant M1A1

Black thread

SUPPLIES:

Paper

Pencil

Tape or strap

PERSONNEL: Two

TM 9-2350-222-10 for procedures to:

REFERENCES:

Insert breech boresight into breech chamber

Remove/install gunner's periscope heed

Open and close breech

Manually traverse turret and elevate/depress gun

TM 9-1290-200-14&P for procedures to calibrate and use Gunner's Quadrant M1A1

EQUIPMENT LOCATION INFORMATION:

FOLDOUT

CALLOUT

EQUIPMENT

Gunner's Periscope

Gunner's Control Box

EQUIPMENT CONDITION: Sighting system components installed

When placing gun on target, move gun to target from low to high and

GENERAL INSTRUCTIONS:

from right to left to keep backlash out of sighting system. If required

gun position is passed (over travel), move gun below or to the right of

target and again move gun to target.

Para 3-4

3-10 Change 1