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9.  BEACON LIGHT DOES NOT OPERATE (CONT) - TM-9-2320-364-20-2_446
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9.  BEACON LIGHT DOES NOT OPERATE (CONT) - TM-9-2320-364-20-2_448
TM 9-2320-364-20-2      2-1223 (1)   Remove 15 screws and two ECB covers. (2)   Pull beacon relay R6 out of socket enough to access terminals with a test probe. (3)   Set multimeter select switch to volts dc. (4)   Connect positive (+) multimeter lead to wire 1413 at beacon relay R6, terminal 30. (5)   Connect negative (–) multimeter lead to a known good ground. (6)   Turn ON ENGINE switch (TM 9-2320-364-10). (7)   Turn on beacon light switch. (a)   If 10 to 14 vdc are not present, repair wire 1413 (see schematic Fig 2-30). (b)   If 10 to 14 vdc are present, wire 1413 is OK. (8)   Turn OFF ENGINE switch. VOLTAGE 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)   Connect positive (+) multimeter lead to wire 1184 at beacon relay R6, terminal 85. (2)   Connect negative (–) multimeter lead to a known good ground. (3)   Turn ON ENGINE switch (TM 9-2320-364-10). (a)   If 10 to 14 vdc are not present, repair wire 1184 (see schematic Fig 2-30) or notify DS Maintenance. (b)   If 10 to 14 vdc are present, wire 1184 is OK. (4)   Turn OFF ENGINE switch. VOLTAGE TEST Relay tests must be performed with relay partially removed. NOTE

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