TM  10-3930-638-24&P 2-32.  HORN  AND  BACK-UP  ALARM  MAINTENANCE a.  Horn. This  task  covers:  a.  Removal c. Inspection b.  Cleaning d.  Installation/Replacement INITIAL  SETUP TOOLS EQUIPMENT CONDITION No. 1 Common Organiza- NSN  4910-(0754-0654 Paragraph Condition Description tional Maintenance Tool Kit Engine  off. 2-33b Battery  ground  cable  disconnected. MATERIALS/PARTS Cleaning  solvent  P-D-680 Clean cloths 2-175

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