Steering wheel reasons for deviation and the reasons for such failures are generally excluded are: (1) within the steering gear valve spool piece suite positioning spring school break Tai'an excavator phone, the valve sleeve does not automatically return to the neutral position, steering lost follower function. In this case, the positioning spring pieces must be replaced. (2) because of the oil hydraulic dirt slide valve movement is blocked. Spool valve should be cleaned Tai'an school address excavator to move flexibly. (3) Since the offset spool valve and valve step position, the valve body is not in the neutral position. It should disassemble and repair the valve spool and excavators school, replace if necessary. (Continued a) 4) diverter valve failure, premature opening. Check valve spring is deformed or failure, if the spring force is insufficient, you can increase the gasket between the spring and the seat. (5) spool and sleeve deformation, can cause both stuck. Shall go into the oil mouth before filling installed a small amount of hydraulic oil, should be flexible and freely rotating spool Tai'an strongest excavators school, if catching phenomenon to be polished. Sometimes, when tightening the bolts at the bottom steering uneven force, there will be the phenomenon of the valve is stuck, the correct approach is 2-3 times evenly tighten the bolts. Tai'an famous schools excavator, excavators school, Kerry and excavators school (view) provided by 泰安嘉 and Heavy Machinery Co., Ltd .. Taian Jia and Heavy Machinery Co., Ltd. (www.tajhzg.com/) is Tai'an, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Heavy leader in Kerry and the staff warmly welcome all inquiries negotiations to create Kerry and heavy industry a better future.