TM 9-2320-360-20-1 WARNING Jewelry can catch on equipment and cause injury or short across electrical circuit and cause severe burns or Remove rings, bracelets, watches, necklaces, and any other jewelry before working around HET Tractor. Check ground wire no. 1435 from backup light and backup alarm for loose connections or damage. BACKUP ALARM TEST (1) Turn ENGINE switch to ON position. (2) Place transmission range selector in reverse (R) position. (3) Listen for operation of backup alarm. (4) Place transmission range selector in neutral (N) position. (5) Turn ENGINE switch to OFF position. BACKUP LIGHT TEST (1) Turn ENGINE switch to ON position. (2) Place transmission range selector in reverse (R) position. (3) Check for operation of backup light. (4) Place transmission range selector in neutral (N) position. (5) Turn ENGINE switch to OFF position. CONTINUITY TEST CAUTION Electrical power must be disconnected from circuit before continuity can be checked.  Failure to comply may result in damage to test equipment or electrical system. (1) Disconnect wiring from components at each end of wire. (2) Set multimeter to ohms position. NOTE A reading of infinity indicates an open circuit. (3) Connect multimeter leads to each end of wire and check multimeter for continuity. NOTE Any    reading    besides    infinity    indicates    a grounded wire. (4) Remove multimeter lead from one end of wire and connect to chassis ground. Change 1  2-615