“1A impeller coal feeder has running failure and stops operation，Has affected the coal dumping progress bc game login upper train！”December 26, 15:00，Zhou Zhigang, the leader bc game login coal handling machinery team of Hengxing Power Generation Company, received the operation contact number。

This is the critical moment to achieve annual goals and ensure energy supply，The crew's "rations" cannot be lost。Facing the biting north wind，Zhou Zhigang jogged all the way to the impeller coal feeder of No. 1 Coal Transfer Station，Li Ying, leader of the brothers’ coal-transporting electrician class, arrived almost at the same time。Electrical、Two squad leaders majoring in mechanical engineering discussed the impeller feeder motor and main bc game login、Segmented "diagnosis" of small planetary cycloidal bc game login。Li Ying uses a double-arm bridge to measure motor direct resistance，Take out the megohmmeter and conduct an insulation test on the slip wire cable and motor coil，Confirm that there is no problem with the electrical side facilities。

The focus of the fault points to the mechanical side，Li Ying、Zhou Zhigang cooperated in removing the safety covers of the middle couplings of the two reducers，Unscrew the 4 anchor screws of the planetary cycloidal bc game login，Work together to slowly push the motor and the small bc game login out to the west along the foundation。Li Ying took out the screwdriver and removed the motor fan guard，Zhou Zhigang turns the fan by hand，The motor fan that is supposed to drive the bc game login to operate flexibly does not move at all，“There is bite damage to the internal transmission gear of the bc game login，Need to be replaced immediately！”

“Baoshun，Drive to the warehouse now to get a planetary cycloidal bc game login，Send to the scene immediately...Wang Nan、Liu Zhidan prepares a wrench、Inverted link、Steel wire rope，Meet me at transfer station No. 1！"Zhou Zhigang took out his mobile phone，On-site deployment、Organize a repair team。Planetary cycloidal bc game login is a long-term online "output" equipment of the coal conveying system，When doing team material planning last month，Zhou Zhigang pre-made two "spare tires" for the 12 planetary cycloidal reducers in the factory。

Less than 5 minutes，Wang Nan, a young worker in the coal handling machinery class、Liu Zhidan rushed to the scene，Zhou Zhigang led two people to wear safety belts，Climb onto the upper steel frame of the impeller feeder，Removing the bc game login connecting pin，Hang the wire rope、Inverted link，Slowly drop the planetary cycloidal bc game login from a height of two meters to the ground。

15:40，Wang Bao, a class A maintenance worker in the coal handling machinery class, arrived at the No. 1 transfer station with the "new product" of the cycloid bc game login。Don’t care to take a breath，Four people moved forward and carried the new bc game login to the impeller coal feeder。A series of "slipping" sounds accompanied by the reverse chain，The new bc game login is firmly tied、Slowly rising into the sky，The bright lights of the transfer station reflect the four figures shuttled up and down the steel frame，The motor is roaring in my ears，The maintenance worker’s oily palms were busy rising and falling，8 coupling pins are installed in place、4 anchor screws "half force" pre-tightened。

"Left - Forward！”Zhou Zhigang uses a knife edge ruler、Feeler gauge for large、Small bc game login coupling alignment，Wang Nan holds a copper rod and vibrates the basic coordination adjustment of the planetary cycloidal bc game login。16:20，All Machinery、Reinstallation of electrical facilities completed；Power supply and trial operation，1A impeller coal feeder moves calmly、Relaxing pace to ensure the supply of electricity and coal。

(Contributed by Yang bc game login of Hengxing Power Generation Company)