TM-9-2350-277-20-4 Unit Maintenance Manual Volume 4 M113A3 M577A3 M1064A3 M1068A3 M58 Download
Page 338 of 884
TM 9-2350-277-20-4 REPLACE COMMANDER’S CUPOLA VISION BLOCK LOCKS AND SEALS (M113A3 AND M1059A3, M58 ONLY) — Continued 0490 00 1. Remove thumbscrew (1) from arm (2). 2. Remove spring pin (3) from arm (2). Discard pin. 3. Remove arm (2) and washer (4) from cupola bracket. 4. Scrape seal (5) from vision block opening. 0490 00-2