Causes and elimination methods:
1, safety door travel switch wiring loose or damaged. Travel switch connected thread or replacement.
2, the solenoid valve of the coil may be moved to the valve, the valve spool movement. Clean or replace locking and opening control valve.
3, the direction of the valve may not be reset. Cleaning direction valve.
4, the valve spool is not reset.
5, the death card (Qu Qu hand hand mold head)
6, the thimble reset can not be returned. Check whether the normal operation.
7, parameter setting problems, such as mold closing pressure is too small.