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;

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

To do a good job in the daily maintenance and maintenance of muck loaders, we should start from mastering the working conditions of each system every day when we leave the car and find out the problem

On the morning of March 6, the commendation meeting for the 109th anniversary of the 38th International Women's Day in Jining High-tech Zone was held. The advanced collectives from different positions

On the afternoon of March 1, a group of Czech businessmen visited the E-commerce Industrial Park of Shandong China Coal Group Co., Ltd. for a visit to equipment procurement and long-term cooperation.