Jaw crusher operation common major fault summarized as follows: (1) crusher idling, the lower metal crash occurs. When the jaw crusher work load, the lower metal crash may occur due to the following three aspects: ① mobile jaw and fixed jaw broken tooth plate colliding sound is too small because the port of discharge caused, should be timely adjusted. ② thrust plate supporting or shims percussion device appears, generally due to the buffer spring elastic rod disappears or damaged, or does not bear the weight of the spring caused by rotation of the movable jaw plate bracket when combined with the body of the three does not close, make bracket head and have a knock-supported at both ends, or adjust shims between each cone crusher impact, compression nut should be tightened until the crash disappeared. ③ There may be badly worn bearing slide bracket or loose brackets serious head wear, should be replaced. (2) work with metal percussion, backing jitter. This phenomenon is more due to the crushing chamber side lining and the tooth plate (dynamic, fixed) are loose, tighten loose screws or broken due to, should be tightened or replaced. (3) after the brackets break frequently. In addition to transfer power after the brackets outside still live on less than its strength from the insurance role. In addition to the strength of the middle bracket is too low, it is not strong enough to overcome the normal crushing ore crushing force generated by damage, this may be overextended rod spring, plus the work force to crush when it overload fracture, may be appropriate loosen the spring. (4) flywheel gyratory crusher, crushing machine is not working. The reason is because of the spring rod and rod damage, making the trip lever nut crusher manufacturers brackets emerge from bearing slider, or it may be broken off bracket, you should replace the installation. (5) flywheel significant swing, eccentric shaft rotating slowly. The fault line belongs to the pulley and flywheel key loose or damaged Simmons crushers, wheel and axle can not rotate synchronously. (6) of the crushed product size thicker, the result is the lower part of the broken liner serious wear and tear. Tooth plate should be exchanged or replaced under the new liner, adjust the port of discharge required size. How jaw crusher is to achieve security and port of discharge adjustable jaw crusher thrust plate (also called bracket), in addition to transfer power to make swing back and forth movable jaw plate do outside, but also has a security role as insurance, but also to change its length It can play a regulatory role in port of discharge. When the jaw crusher cavity can not break into the matter (such as iron ball, iron, etc.), to protect the equipment after the main components from damage while the use of thrust plate as the crusher assurance member. After the thrust plate is generally made of cast iron cast as a whole, in which the department to open a groove or a plurality of apertures to reduce its cross-section strength; also cast two, then connected by screws (or rivets), consisting of a combination of thrust plate. When not broken material into the crushing chamber, equipment overload, huge crushing force to cause the thrust plate thrust plate fracture or a combination thrust plate screws cut, the machine stopped working, play a role as insurance. With the constant wear and tear tooth plate, port of discharge becomes larger, thicker products constantly, in order to get qualified product size, require periodic adjustment of discharge opening size. Adjustment of discharge ports are the following two ways: (1) shims that support seat in the back of the back pressure plate between the frame rear wall and put a set of gaskets, shims or change the number of its thickness , you can achieve the purpose of adjusting the port of discharge. This method is compact structure, regulate reliable, large and medium-sized jaw crusher and more with this adjustment method. (2) wedge adjustment, is placed between two wedges thrust plate between the rear seat and chassis adjustment, suitable small crusher. Cone crusher, crusher Fuxin, Zhongcheng Shenyang North mine all mine to the north by the Shenyang equipment Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) strong, credible, in Shenyang, Liaoning province machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the public into Shenyang North mine equipment Limited and you hand in hand into the brilliant, for a better future!