Moving, newly installed scraper, former first class job carried out commissioning of the blade , the blade rotation and a half weeks after stopping the chain , check the flip to the chute on the scraper chain , while checking whether the tightness of the traction chain jump chain drift chain , off the chain , etc., whether the various moving parts hanging cards and stuffy car phenomenon , load after load test run to run without problems . Commissioning of the problem found , should the team captain , electrical fitter common treatment, dealing with problems , first issued a stop signal , the control switch to the off position pull handle and lock , then hang blackout card. When the machine is running , the driver should observe the operation, always check the motor , reducer , ministries bearing temperature , noise , etc. There are no unusual phenomena, such as abnormal situation should be immediately stopped , for further examination , and troubleshooting. Reducer temperature not greater than 70 degrees , the motor temperature not greater than 85 degrees. Full face in the conveyor does not have an excessive bending , bending of not more than about 3 degrees , to avoid falling chain. Scraper conveyor nose, tail solid pillar must be complete and effective . Scraper chute remain flat , steady , straight, flush the chain ring bolts and tighten the nut , scraper complete. After the start , to observe its running, observe the operation is smooth , the sound is normal , conveyor chains, scraper connecting ring , and other requirements of the chain intact , solid and reliable. Running, the driver may not leave their posts ; want to leave , you must stop atresia . Scraper conveyor driver must pay attention to the work .