TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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5-21 TM 9-1240-401-34&P 8 Remove two machine screws (17), two lock- washers (18), and Iamp retainer (19). Discard lock- washers. 9 Remove eight machine screws (20), eight lock- washers (21), and two lamp assemblies (22). Dis- card Iockwashers. 10 Remove machine screw (23), lockwasher (24), and electrical connector cover (25). Discard lock- washer. 11 Remove LED (26). 12 Using 11/16 and 45/64 inch tubular spanner wrench, remove threaded ring (27). 13 Remove electrical lead (28) with wire attached. 14 Remove lens (29), only if necessary for replace- ment. 15 Remove and discard preformed packing (30). 16 Repeat steps 10 through 15 for second lamp as- sembly. NOTE Perform steps 17 through 21 only if either lamp assembly needs repair. 17 Unsolder wire (31) from terminal strip (32). 18 Remove preformed packing (33) from plug (34) and discard. 19 Remove two tubes (35) and insulation sleeving (36) from plug (34) and holder (37). Discard insula- tion sleeving. 20 Remove non-shrinkable insulation sleeving (38) from wire (31). Discard insulation sleeving. 21 Remove electrical lead (28) with wire (31) attached from holder (37).