Hardness requirements of hydraulic piston pump 2.5MYCY14-1Bparts：
For the friction pair of the spherical port of the hydraulic piston pump 63MYCY14-1B, when the port surface of the cylinder block of the piston pump 80MYCY14-1B is relatively shallow, it is corrected by the grinding method; when the port surface of the cylinder block has a deep groove, the "surface engineering" method is used to fill the groove, and then the grinding operation is carried out. According to the specific situation, the corresponding grinding is used to thin the layer or leak out the steel base.
The friction pair of the plane distribution of the hydraulic piston pump can be grinded on the path with high precision.
Measure the total thickness specification and the specification that should be ground off, then compensate to the adjusting pad, and then grind the cylinder block and piston pump 5MYCY14-1B. When the lapping amount of port plate is large, heat treatment shall be carried out from the beginning after lapping to harden the hardness of the layer.
First, the oil distribution plate shall be coated, placed on the path or flat glass, and the cylinder block shall be placed under the cylinder block to inject diesel oil into the cylinder hole. One hole shall be filled with oil, and one hole shall not be filled with oil alternately. If there is no leakage of diesel oil in the piston pump 10MYCY14-1B plug hole, the cylinder block and the distribution plate shall be grinded to be qualified.
After correcting the oil distribution plate and cylinder block of the piston pump 25MYCY14-1B, check the leakage of the cooperation surface. The method is to block the oil drain channel (apply vaseline oil on the oil distribution plate).
Hydraulic piston pump 32MYCY14-1B should be maintained frequently to provide service life. The quantity and quality of hydraulic oil is also the key factor to improve the service life of the piston pump 40MYCY14-1B.
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