This the GR drum which is operated with ZSMGR(Graduator Servo Motor Handle). Notches have to be taken manually by the ALP when MP/EEC fail to work.Notches have to be taken within 0.6 seconds else the RGR will burn & trip the DJ.Q44 relay helps protect the RGR.
Sachin Buddhisagar (buddhisagarsachin at gmail.com)