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Clamping part failure problems and treatment methods
1) : check the safety door switch, and repair. 2) : check all the electricity in 24 v5a power, in insurance and power supply box. 3) : check whether the valve core is stuck, clean the valve core. 4) : to check whether there is output I/O board, the electromagnetic valve is electrically charged. 5) : check whether the hydraulic safety switch is pressing, mechanical rod baffle lock is on.