ARMY TM 9-6115-60412NAVY NAVFAC P-8-633-12(d) If power exists at lamp holder (19) terminals, replace lamp with a known good lamp. Refer to step(2), below.(e) If known good lamp (18) does not light, replace lamp holder (19).(2) Replace. See Figure 5-2.(a) Remove lens covering lamp (18). Remove lamp.(b) Tag and disconnect wires from lamp holder (19).(c) Remove lamp holder (19) from panel by removing attaching hardware.(d) Install lamp holder (19) In panel Secure with attaching hardware.(e) Connect wiring to lamp holder (19) as tagged.(f) Remove and discard tags. Install lamp (18).(g) Install lens to secure lamp (18).(h) Close RCM panel and secure by locking three oval studs at the top of the panel.o. SYNCHROSCOPESwitchS115R.(20,Figure5-2).The SYNCHROSCOPE switch S11 5R is a two-positionswitch consisting of three decks This switch enables SYNCHRONIZING LIGHTS DS11 OR and DS1 11 R andSYNCHROSCOPE M106R.(1) Test.(a) Shut down the generator set See Figure 2-23.(b) Open the RCM panel by unlocking three oval studs across the top of the panel.(c) Tag and disconnect wires to SYNCHROSCOPE switch S115R.NOTESwitch wiring position numbers are translated as follows the first digit defines the section,or deck, In relation to the handle end; the second digit is a specific terminal on thatdeck. For example: position 23 is located on the second deck, the contact is terminalnumber 3.(d) Set a multimeter to RX1 scale and test for contact continuity in the switch positions specified in thechart in Figure 4-73. Meter should indicate 0 ohms at all points marked in the chart.(e) Multimeter should Indicate Infinite ohms at all blank contacts In the chart.(f) Rotate switch handle to both ON and OFF positions to check mechanical functioning.(g) Replace switch If It falls any test described above.(h) Connect wires to SYNCHROSCOPE switch S115R as tagged. Remove and discard tags.(2) Replace. See Figure 5-2.(a) Tag and disconnect wiring to switch (20) terminals.(b) Remove screw in center of handle and slide handle off shaft.(c) Remove three screws from face of mounting plate on front of RCM panel Switch (20) sections canbe removed at rear of RCM panel as an assembly.(d) Install replacement SYNCHROSCOPE switch S115R (20) by positioning switch sections at rear ofRCM panel and assemble the mounting plate from the front Secure the assembly with the threemounting screws.(e) Replace switch handle In the OFF position and secure with the attaching screw.(f) Connect wires as tagged. Remove and discard tags.5-23
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