Monthly Archives: July 2019

  1. What are the reasons for Nachi piston pump skeleton oil seal leakage?

    The Nachi piston pump crankcase is lubricated with splash oil. A skeleton oil seal is installed at the connection between the crankshaft and the crosshead connecting rod and the outside of the cabinet to prevent oil leakage. The skeleton oil seal is composed of an oil seal body, a reinforcing skeleton and a self-tightening coil spring.

  2. Knowledge and Skills of Rexroth Gear Pump Maintenance

    With the increase of service time, there will be insufficient pump oil, even no pump oil and other faults in Rexroth gear pump. The main reason is that the wear of the relevant parts is too large. The wear parts of Rexroth gear pump mainly include the driving shaft and bushing, the center hole and pin of passive gear, the inner cavity and gear of pump housing, the end face of gear and pump cover, etc. When the main technical indicators of the lubricating oil pump fail to meet the requirements after wear, it should be disassembled and decomposed to find out the wear parts and extent, and take appropriate measures to repair them.

     Rexroth Gear Pump Maintenance

    I. Repair of worn axle and bushing

    After the wear of the driving shaft and bushing of Rexroth gear pump, the matching clearance will increase, which will certainly affect the oil quantity of

  3. How to improve the operation efficiency of Rexroth vane pump equipment? What are the methods?

    New control system, integral valve system and start/stop system are designed to improve the efficiency of equipment operation.

  4. Demolition steps and installation instructions of hydraulic motor

    A&S Hydraulic Co., Ltd. The clearance of each pair of motors manufactured by Ltd has been matched well.