TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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CONTINUITY TEST  TM 9-2320-366-20-1  (1) Remove two screws and lens cover from  marker light base.  (2) Remove marker light lamp from socket.  (3) Set multimeter to ohms.  (4) Check continuity through marker light lamp  and note reading on multimeter.  (5) If continuity is not present, replace marker  light lamp (para 7-38).  (6) Install marker light lamp in socket.  (7) Install lens cover on marker light base with  two screws.  Change 1 2-604.89