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9.  BEACON LIGHT DOES NOT OPERATE (CONT) - TM-9-2320-364-20-2_448
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9.  BEACON LIGHT DOES NOT OPERATE (CONT) - TM-9-2320-364-20-2_450
TM 9-2320-364-20-2      2-1225 (1)   Set multimeter select switch to ohms. (2)   Is there continuity on wire 1435 between relay R6, terminal 86 and a known good ground? (a)   If there is no continuity, repair wire 1435 (schematic Fig 2-30). (b)   If there is continuity, wire 1435 is OK. CONTINUITY TEST Remove all jewelry such as rings, dog tags, bracelets, etc.  If jewelry or tools contact positive electrical circuits, a direct short may result.  Damage to equipment, injury or death to personnel may occur. Circuit breakers CB5, CB6, CB12, CB20, CB22, CB23 and relays R3, R13 - R19, R26, R28, R32, R33 are always electrically hot and can cause severe injury to personnel.  Care must be exercised when working under the electrical circuit board cover. (1)   Set multimeter select switch to volts dc. (2)   Connect positive (+) multimeter lead to wire 1029 at beacon relay R6, terminal 87. (3)   Connect negative (–) multimeter lead to a known good ground. (4)   Turn ON ENGINE switch (TM 9-2320-364-10). (5)   Turn on beacon light switch. (a)   If 10 to 14 vdc are not present, perform Steps (6) through (8) below and replace relay R6 (Para 7-95). (b)   If 10 to 14 vdc are present, perform Steps (6) and (7) below and repair wire 1029 (see schematic Fig 2-30) or notify DS Maintenance. (6)   Turn off beacon light switch. (7)   Turn OFF ENGINE switch. (8)   Push relay R6 completely in to socket. (9)   Install two ECB panels and 15 screws. VOLTAGE TEST NOTE Relay tests must be performed with relay partially removed. NOTE The use of an insulated jumperwire may be required to perform voltage test.

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