Types and characteristics of hydraulic cylinders for hydraulic presses
Troubleshooting of the sequence action circuit of the stroke switch (electrical) control of the electromagnetic reversing valve for the hydraulic press A. Limit switch: For example, due to the reliable installation of the travel switch, loose contact due to repeated collisions, poor contact caused by arc burnt contacts, and the quality of the travel switch itself, the travel switch cannot reliably and accurately send letters, resulting in inconsistent Sequential actions can identify the cause and eliminate it. B circuit failure = such as wrong wiring, weak or disconnected electromagnet wiring, and failure of other electrical components, etc., resulting in disordered or non-sequential actions.
The collision block on the piston rod of the hydraulic press cannot reliably press the travel switch due to wear or loosening, or the installation and fastening position of the collision block is incorrect, so that the travel switch cannot accurately send letters, resulting in abnormal sequence actions, which can be eliminated one by one according to the identified reasons. D. Reversing valve failure: For example, the valve core cannot be reset due to spring breakage, etc., you can refer to the previous content about solenoid valve failure and troubleshooting for troubleshooting.
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