Why does the concrete pump main cylinder check valve damage cause the cylinder stroke to be short and the pumping is weak?

Answer:

The rod can not return to the specified position, long-term operation will cause the master cylinder stroke becomes shorter, if the stroke becomes shorter, generally through the pressure to make the cylinder piston rod reset to fully extended

Type of pipe area, the rod cavity of the oil through the rodless chamber check valve back to the main hydraulic system (the one-way valve on the oil cooling and piston buffer function), you must extend through the just

When the cylinder of the cylinder is pushed forward, it must be replenished to the retraction cylinder by means of a rod-side check valve that extends out of the cylinder to ensure that the retraction cylinder can retract to the bottom because when the piston is run to "U

one-way valve in a set of equipment on the four, generally have a rod on the one-way valve from the role of oil, when a rod chamber check valve damage (such as the normal wear spool can not be successfully opened), in a

The main cylinder discharge, long run will lead to shorter travel, when the main cylinder of the smaller volume, through the pressure (closed off the valve) can also be achieved by the preset pressure, it can not be pressed to determine whether the master cylinder seal damage;