It should also pay attention to the proper use and maintenance of loaders in the course regularly add or replace hydraulic oil paver hydraulic repair and maintain the cleanliness of hydraulic oil hydraulic paver repair phone, strengthen the routine inspection and maintenance. Repair and maintenance of the hydraulic pump motor is generally effective use of 3000 ~ 6000 h (normal working hours accumulated), beyond this period paver hydraulic repair Which is good, pump performance will be significantly decreased after repair hydraulic paver maintenance company, can not even be used. At this point, it must be repaired or updated. Because the repair cost is relatively low, only 50% of the replacement cost of the (domestic pumps) or 10% (imported pumps), so if the internal pump or hydraulic motor wear is not very serious, it should be repaired rather than replacement parts. Repair of pumps and motors mainly refers to the valve plate, liner, thrust plate and return plate and other common vulnerability fixes. The test showed that these parts after wear and corrosion, mostly have 3 to 4 times to repair allowance, it is possible to repair it. Due to the high requirements of the end face precision of these parts (see Figure 1), the requirements of surface roughness Ra of 0.2 μm, the flatness of 0.9 μm. These surface failure generally can not be repaired by metallographic abrasive paper, because grit sandpaper on metallurgical easily fall off, sand off easily mounted on the rear surface of the workpiece, thus affecting their performance. Paver hydraulic repair, hydraulic repair paver Weinan, Xi'an Xi'an Chengtong hydraulic repair Chengtong hydraulic repair Limited. Xi'an Chengtong Hydraulic Maintenance Co. (www.huosu360.com) strong, credible, in Xi'an, industrial maintenance, installation and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Xi'an-hydraulic service and you work through into the brilliant, for a better future!