TM  10-3930-638-24&P 2-32.   HORN   AND   BACK-UP-ALARM   MAINTENANCE   (cont) c.  Back-up  Alarm. This task covers: a.   Removal b.  Cleaning INITIAL  SETUP TOOLS No. 1 Common Organiza- NSN tional Maintenance Tool Kit MATERIALS   PARTS Cleaning  solvent  P-D-680 Clean cloths c.  Inspection d.  Installation EQUIPMENT CONDITION 4910-00-754-0654 Paragraph Condition Description Engine  off. IGNITION switch in OFF position and key  removed. 2-52c Tow bar lowered to ground and grille open. STEP’ LOCATION ITEM ACTION REMARKS REMOVAL 1 Top left rear of a. Wire leads Tag vehicle b. Two nuts (1), lock Remove Tag wire leads, then remove from alarm washers (2) and wire terminals leads (3) c. Two nuts (4); lock Remove Support alarm (7) and wire (8) washers (5) and cap screws (6) d. Back-up alarm (7) and Remove ground wire (8) 2-179

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