Troubleshooting Procedures

TM 5-6350-264-14&P-9 NAVELEX EE 181-AA-OMI-100/E121 DZ-204 T.O. 31S9-2FSS9-1-9 Table 5-1. Troubleshooting Procedures - Continued Trouble Probable cause Corrective action 1. (Cont) f. (Cont) e. If the highest multimeter indication is greater than 13,000 ohms, tag, remove, and isolate the yellow wires (-) from C15 and C16. f. Connect leads to inner enclosure and negative ter- minal of C15, then to inner enclosure and negative terminal of C16. g. If either capacitor check is less than 100,000 ohms, replace the capacitor. (1) To remove capacitor, tag and remove wires. Loosen screw on mounting bracket and remove capacitor. (2) To install new capacitor, position capacitor in mounting bracket and tighten mounting screws. Connect wires to capacitor ter- minals. h. If after removing P2 meter indicates less than 13,000 ohms, inspect enclosures for foreign matter, conduit contacting both enclosures, frayed wires, leaking battery or any other ma- terial that will allow continuity between enclosures. i. Set multimeter to ac volts. Connect leads to P1-l and P1-2. Meter should indicate 68 +7 vac. (1) If meter does not indicate 68 +7 vac, turn power switch S3 to POWER OFF. (2) Tag, remove, and isolate white wire (+) from C15. Turn power switch S3 to POWER ON. Connect multimeter leads to P1-1 and P1-2. If meter does not in- dicate 68 +7 vac, turn power switch S3 to POWER OFF and install C15 white wire (+). If meter indicates 68 +7 vac, replace C15. (a) To remove capacitor, tag and remove wires. Loosen screw on mounting bracket and remove capacitor. 5-15