TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 897 of 1170
nut (17). c. Siren Assembly Installation TM 9-2320-280-20-3 12-185. SIREN AND WARNING LIGHT INSTALLATION (Cont’d) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Using fabricated siren bracket (1) as a template, locate, mark, and drill six 0.343-in. (8.7-mm) diameter holes (2) in right side of roof (3). Locate, mark, and drill 0.75-in. (19-mm) diameter hole (4) in right side of roof (3). Cut roof panel insulation (5) away for access to mounting hardware. Cut siren lead (28) to a length of 5.0 in. (12.7 cm). Install shell (27), sleeve (26), and terminal (25) on siren lead (28). Install gasket (11), plate (10), and panel (15) on siren bracket (1) with four capscrews (16), lockwashers (8), and nuts (7). Install siren assembly (6) and fabricated ground wire “I” (9) on siren bracket (1) with two capscrews (16), lockwashers (8), and nuts (7). Install siren bracket assembly (1) on roof (3) with four screws (14), two screws (18), six washers (13), and locknuts (12). Connect connector (24) of fabricated wire "H" (23) to siren lead (28) and route wire “H” (23) and ground wire "I" (9) through hole (4). Split grommet (20) and install grommet (20) in hole (4). Install siren wires (23) and (9) on siren bracket (1) with clamp (19), washer (22), screw (21), and 12-284