Section IV. REMOVAL AND REPLACEMENT OF MAJOR COMPONENTS AND ASSEMBLIES

Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10_139

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 Section III. GENERAL MAINTENANCE 5-5. MAINTENANCE ACTION. The extent of direction and general support maintenance is governed by the Maintenance Allocation Chart (MAC), Appendix B. The MAC authorizes on-site test and replacement of the AC POWER indicator lamp, battery, power supply, fuse F1, status processor, PC boards in status processor, LATCH/ NON-LATCH toggle switch, RESYNC pushbutton switch, connector receptacle, and tamper alarm switch (TAS). The MAC also authorizes on-site inspection and replacement of the mode switch, battery, interconnecting wiring assembly in the status processor, and the terminal board assembly. Periodic testing of the Control Unit is not scheduled because the J-SIIDS is maintained in continuous operation. Section IV. REMOVAL AND REPLACEMENT OF MAJOR COMPONENTS AND ASSEMBLIES 5-6. REMOVAL AND INSTALLATION PROCEDURES. a. To remove AC POWER indicator lamp, unscrew the plastic lens from the front side of the door. Grasp the lamp, press in, rotate to the left, and pull out. b. To install new AC POWER indicator lamp, insert it in socket, press in, and rotate to the right until it locks into place. Put plastic lens over lamp and screw in place. c. To remove battery, turn off switch S1 on power supply. Disconnect and insulate wires from battery terminals. As battery is heavy, carefully lift and turn it to remove from bottom of CU enclosure. d. To install a new battery, position it outside CU enclosure. Carefully insert battery, end first, turn and lower into bottom of CU enclosure. Connect wires to battery terminals. Turn on switch S1 on power supply. e. To remove power supply, turn off switch S1 on top of power supply. Pull main circuit breaker to remove 120 vac from CU. Disconnect wires from battery. Carefully (battery is heavy) lift and turn battery to remove it 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 remove screws that secure power supply to side of CU enclosure. Be careful not to drop power supply 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 the bottom of power supply. Remove power supply. f. To install new power supply, remove cover, and turn unit so TB3 is accessible. Support power supply and connect wires to TB3. Turn power supply upright and position it over standoffs on side of CU enclosure. 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 enclosure. Carefully insert battery end first, turn, and lower it into bottom of CU enclosure. Connect wires to battery terminals. Switch on main circuit breaker. Turn on switch S1 on top of power supply. 5-122

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