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Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10_134
TM-5-6350-264-14P-10_136

TM-5-6350-264-14P-10 Alarm Set Control Manual
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TM 5-6350-264-14&P-10 NAVELEX EE 181-AA-OMI-110/E121 C-9412 T.O.  31S9-2FSS9-1-10 Table 5-2.  Troubleshooting Procedures - Continued Trouble Probable cause Corrective action 9. (Cont) c. (Cont) d. If meter indicates 0 ohms, replace power supply. (1)   To remove power supply, pull main circuit breaker to remove 120 vac from CU.  Disconnect wires from battery.  As battery is heavy, lift and turn it to remove from bottom of CU enclosure. Tag and disconnect wires from TB2 and TB4.  Remove screws that secure cover, and remove cover.  Tag and disconnect wires from TB1.  Carefully re- move screws that secure power supply to side of CU enclosure. Be careful not to drop it inside CU.  Note cable clamp under screw near TB4 (bottom front). Support power supply and turn it so wires can be tagged and disconnected from TB3 on bottom of power supply. (2)   To install new power supply, re- move cover, and turn unit so TB3 is accessible.  Support power supply, and connect wires to TB3.  Turn power sup- ply upright and position it over standoffs on side of CU enclos- ure.  Note that cable clamp goes under screw on bottom front of power supply.  Insert screws and tighten to secure power supply. Connect wires to TB1.  Replace cover and secure with screws. Connect wires to TB2 and TB4. Position battery outside CU en- closure.  Carefully insert battery end first; turn and lower it into bottom of CU enclosure.  Con- nect wires to battery terminals. Switch on main circuit breaker. 5-117







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