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Firstly, check the wiring of motor and control transformer of rock loader.When the voltage is 660v, the motor should adopt type wiring; when the power supply is 1140v, Y-type wiring should be adopted;

I. General Requirements Drivers must have a certain cultural quality and a high sense of responsibility, must love their own work, through professional and systematic training, to obtain operating per

On March 12th, The 13th Executive Committee Meeting Of Jining City Industry & Commerce federation and the mobilization meeting of the “Double-Case Double-Leading Implementation Year” was held in the C

A new era of meritorious service, the style of the exhibition. On the afternoon of March 8, China Coal Group hold a commendation ceremony to celebrate the 109th anniversary of the "March 8" Internatio

Warmth in March, warmth is thick. On the occasion of the 109th International Women's Day, in order to better care for the female employees of the group, on the afternoon of March 8, China Coal Group h

Cylinder gasket burned by high temperature gas in the cylinder is called "punching gasket", also known as "burning gasket". The abnormal phenomena such as water tank "bubbling", oil pan water inflow,