TM 9-2350-277-20-5REPLACE M3 NBC HEATERS AND CONTROLLERS (M1059A3 ONLY) — Continued 0797 0012. Secure two leads (1) to adjacent heater hoses (2) with new straps (3).13. Connect two leads (1) to commander’s controller (4) and commander’s heater (5).14. If bracket (6) was removed, install bracket on hull top plate. Secure with two new lock screws (7) and washers (8).15. Install operator’s heater (9) on bracket (6). Secure with four screws (10), washers (11), and new locknuts (12).16. Connect circuit 537D lead (13) to operator’s heater (9).17. Install two clamps (14) on outlet hose (15) and inlet hose (16). Install hoses on operator’s heater (9). Tighten clamps.0797 00-8
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