TM 9-2350-261-20-4
REPLACE M13 NBC HEATERS AND MOUNTS (M577A2 ONLY) -- Continued
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11. Remove two screws (8), four washers (9), two locknuts (10), and bracket (11) with switch assembly (12) from frame (7).
Discard locknuts.
12. Remove six screws (13), 12 washers (14), six locknuts (15), and frame (7) from welded molding. Discard locknuts.
13. Remove hose (16) and circuit 579C lead (17) from frame (7).
14. Remove circuit 537E, 537D, and 537C leads (18), (19), and (20) from operator's heaters (21), (22), and (23) respectively.
15. Loosen two clamps (24) and remove inlet and outlet hoses (25) and (26) from heater (21).
16. Loosen two clamps (27) and remove inlet and outlet hoses (28) and (29) from heater (22).
17. Loosen two clamps (30) and remove inlet and outlet hoses (31) and (32) from heater (23).
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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