TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0114 00 0114 00-2 AIR HORN, SOLENOID, AND BRACKET REPLACEMENT (Contd) SOLENOID REMOVAL WARNING Do not disconnect air lines before draining air reservoirs. Small parts under pressure may shoot out with high velocity, causing injury to personnel. 1. Disconnect air line (2) from elbow (3). 2. Remove elbow (3) from air solenoid (4). NOTE Prior to removal, tag lead wires for installation. 3. Disconnect wire plugs (5) and (6) from air solenoid (4). 4. Remove air solenoid (4) and nipple (7) from air horn (1). AIR HORN REMOVAL 1. Remove two nuts (10), lockwashers (11), screws (16), and air horn (1) from bracket (12). Discard lockwashers (11). 2. Remove two nuts (14), lockwashers (13), screws (9), and bracket (12) from fender (15) and brace (8). Discard lockwashers (13). AIR HORN INSTALLATION 1. Install bracket (12) on fender (15) with brace (8), two screws (9), new lockwashers (13), and nuts (14). 2. Install air horn (1) on bracket (12) with two screws (16), new lockwashers (11), and nuts (10). SOLENOID INSTALLATION NOTE Clean all male pipe threads and wrap with antiseize tape before installation. 1. Install nipple (7) and air solenoid (4) on air horn (1). 2. Install elbow (3) on air solenoid (4). 3. Connect air line (2) to elbow (3). 4. Connect wire plugs (5) and (6) to air solenoid (4). 5. Connect battery ground cable (WP 0126 00). 6. Start engine (TM 9-2320-361-10) and allow air pressure to build up to normal operating range. 7. Check for air leaks at horn solenoid. 8. Check horn for proper operation (TM 9-2320-361-10). 9. Lower hood and secure (TM 9-2320-361-10). 10. Release parking brake and remove wheel chocks (TM 9-2320-361-10).