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 break, so that the sleeve does not automatically return to the neutral position, steering servo lose function. At this point, the best schools excavator Tai'an, positioning the spring plate must be replaced. (2) because of the oil hydraulic dirt slide valve movement is blocked. Spool valve should be cleaned so that it can 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 replace it if necessary. Steering wheel shaking serious this situation is usually a mechanical failure, such as wear and tear between the connecting pin and the connecting pin of the gap increases, Tai'an excavators school address, or steering wheel-bearing wear. Should be restored by checking the clearance and replacement parts System normal working condition; or the steering cylinder with air, should the steering cylinder port fitting end to loosen, turn the steering wheel, excavators schools so that the oil flows into the steering via steering No one cylinder chamber twist loose fitting, until you release the joints are not fizzy fluid flow only when, and then tighten the fittings. Tai'an best schools excavator, excavators school, Kerry and excavators school by 泰安嘉 and Heavy Machinery Co.,泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) strong, credible, in Tai'an, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kerry and heavy and you hand in hand into the brilliant, for a better future!