FIRE CONTROL LEVEL INSTALLATION

TM 9-1220-231-34&P

TOOLS: 1/4" flat tip screwdriver, offset

Soft face hammer

M1A1 gunner's quadrant

PERSONNEL: One

REFERENCES: TM 9-2350-222-10 for Elevating and depressing gun

Using M1A1 gunner's quadrant

EQUIPMENT CONDITION: Ballistic drive mounted in vehicle; vehicle on level ground

FRAME 1

Step

Procedure

NOTE

If pins were removed or are being replaced, start with

step 1. If not, go to step 3.

Place two pins (1) in holes in ballistic drive (2).

Using hammer, tap pins (1) gently until they are in place.

Position fire control level (3) on pins (1) evenly.

Using hammer, tap fire control level (3) gently to install on pins (1).

Using 1/4" offset screwdriver, install two washers (4) and two screws (5).

Place gunner's quadrant on breech (6) leveling pads (TM-10).

Elevate or depress gun until level bubble in gunner's quadrant is centered (TM-10).

GO TO FRAME 2

Vol II