(1) when the piston rod and stuffing box assembly is skewed, causing local friction, should be adjusted in time;(2) the sealing ring holding spring is too tight, the friction force is large, should be adjusted appropriately;
(1) when the piston rod and stuffing box assembly is skewed, causing local friction, should be adjusted in time;
(2) the sealing ring holding spring is too tight, the friction force is large, should be adjusted appropriately;
(3) If the axial clearance of the sealing ring is too small, the axial clearance should be adjusted according to the requirements;
(4) the amount of oil is insufficient, and the amount of oil should be increased appropriately;
(5) the piston rod and sealing ring run-in is not good, should strengthen the run-in when matching research;
(6) Gas and oil mixed with impurities, should be cleaned and kept clean.
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