TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 342 of 953
TM 9-2320-280-20-2 4-104 Change 3 4-64. DIRECTIONAL SIGNAL CONTROL (12339312-1) MAINTENANCE a. Removal 1. Loosen connector nut (4) and remove connector plug (5) from directional signal control (3). 2. Remove four screws (2) and directional signal control (3) from clamp (1). INITIAL SETUP: Applicable Models All vehicles except: M997A2, M1025A2, M1035A2, M1043A2, M1045A2, M1097A2, M1123 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Cleaning and lubricating compound (Appendix C, Item 16) Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition Battery ground cable disconnected (para. 4-73). 1. Install directional signal control (3) on clamp (1) with four screws (2). 2. Install connector plug (5) on directional signal control (3) and tighten connector nut (4). b. Cleaning This task covers: a. Removal c. Installation b. Cleaning NOTE Clean the signal control before replacing it. After cleaning, install and try again before replacing. 1. Remove four screws (7) and signal arm plate (6) from signal control (3). CAUTION Do not sand contacts with sandpaper or an emery board which removes the protective coating that fights corrosion. Damage to the switch will result. NOTE The cleaner has an alcohol base that dries quickly. 2. Spray signal control contacts (8) with cleaning compound. 3. Install signal arm plate (6) on signal control (3) with four screws (7). NOTE The directional signal control for this application is no longer available. For replacement of a defective directional signal control, the procedures and part number for the A2 application should be used (para. 4-65). c. Installation