TM 9-2350-277-20-4
REPLACE COMMANDERS CUPOLA VISION BLOCK LOCKS AND SEALS (M1064A3
ONLY) Continued
0491 00
1.
Remove thumbscrew (1) and spring (2) from periscope clamp (3).
2.
Remove bolt (4), washer (5), and periscope clamp (3) from post (6).
3.
Remove post (6) and washer (7) from cupola.
4.
Scrape seal (8) from vision block opening.
0491 00-2