TM-9-2350-311-10

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 438 of 775

TM 9--2350--311--10

3--38

Change 6

3--6

ARMAMENT AND CAB MAINTENANCE — CONTINUED

3--6.1

Maintenance of Sighting and Fire Control Equipment — Continued

d. M140 Alinement Device

WARNING

The M140 alinement device is radioactively illuminated. Check for loss of luminescence,

breakage, damage, or defects. If present, follow the procedures on pages b and c.

In a low light environment, check M140 alinement device (9) for illumination. If illumination is weak, notify local

Radiation Protection Officer.

9