Troubleshooting Procedures

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 1. (Cont) f. (Cont) l. If meter indicates less than 2, 000 ohms in SECURE and more than 100, 000 ohms in ACCESS, and if there is a jumper wire from S3, terminal 3-1 to terminal 3-3, replace mode switch S3. m. If meter indicates more than 100, 000 ohms with mode switch in SECURE, connect meter leads to S3, terminals 3-4 and 3-3, and then terminals 3-4 and 3-1. n. If meter indicates more than 100, 000 ohms, replace mode switch S3. (1) To remove mode switch, remove large hex nut that secures switch mounting bracket to inside of CU door. Remove switch and mount- ing bracket together. Be careful not to lose switch arm because it is not secured to switch shaft. Remove spacer and lock from door so no items will be lost. Re- move small hex nut and lock wash- er that secures mounting bracket and switch stop to switch shaft. Remove mounting bracket and switch stop. Note that mode switch is a three deck switch. Tag wires and use a soldering iron of 50 watts maximum to remove them from switch terminals. (2) To install new mode switch, use a soldering iron of 50 watts maxi- mum to connect wires to switch terminals. Slip mounting bracket and switch stop over switch shaft. Ensure that notch in mounting bracket fits over tab on switch body, and that the tang on switch stop engages notch in mounting bracket. Secure bracket and stop to switch with lock washer and small hex nut. Insert lock through hole in CU door; slip spacer over 5-32