TM 9-2350-277-20-5REPLACE M13 NBC HEATERS AND MOUNTS (M577A3 ONLY) — Continued 0796 00INSTALLATION1. Install operator’s heaters (1), (2), and (3) on welded mounts (4), (5), and (6). Secure each heater with four screws (7),eight washers (8), and four new locknuts (9).2. Install inlet and outlet hoses (10) and (11) and two clamps (12) on operator’s heater (1). Tighten clamps.3. Install inlet and outlet hoses (13) and (14) and two clamps (15) on operator’s heater (2). Tighten clamps.4. Install inlet and outlet hoses (16) and (17) and two clamps (18) on operator’s heater (3). Tighten clamps.5. Install circuit 537C lead (19) on operator’s heater (1), circuit 537D lead (20) on operator’s heater (2), and circuit 537Elead (21) on operator’s heater (3).NOTEIf frame was removed, see Replace Air Purifier and Frame (WP 0776 00).6. Install hose (22) and circuit 579C lead (23) in frame (24).7. Install frame on welded molding with six screws (25), 12 washers (26), and six new locknuts (27).8. Install bracket (28) with switch assembly (29) on frame (24). Secure with two screws (30), four washers (31), and fournew locknuts (32).9. If either grommet (33) was removed, install new grommet on hose (34).10. Install hose (34) with grommets (33) on frame (24).0796 00-4
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