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TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download

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g. Passenger's Side Siren Switch and Driver's Side Siren Switch Installation TM 9-2320-280-20-3 12-185. SIREN AND WARNING LIGHT INSTALLATION (Cont’d) 1. Install two shells (3), washers (4), and terminals (5) on leads (2) of passenger’s side siren switch (1). 2. Tape and secure two unused leads (6) of passenger’s siren switch (1). NOTE Passenger’s side and driver’s side siren switch are the same. Repeat steps 1 and 2 for driver’s side switch. 3. Locate, mark, and drill two 0.187-in. (4.8-mm) diameter holes (8) and 0.750-in. hole (7) on “A” beam (9). 4. Install passenger’s side siren switch (1) on “A” beam (9) with two lockwashers (19-mm) diameter 10) and screws (11). 12-288