TM 9-2350-277-20-5
REPLACE M13 NBC HEATERS AND MOUNTS (M577A3 ONLY) — Continued
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18. Remove four screws (33), eight washers (34), and four locknuts (35) from each operator’s heater (21), (22), and (23).
Discard locknuts.
19. Remove heaters from welded mounts (36), (37), and (38).
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