Repairing a dual hydraulic screw valve ‌ involves a number of aspects, including replacing damaged parts, adjusting and optimising system Settings, and carrying out the necessary maintenance to ensure proper valve operation and extend service life.

Problem 1: The cooling head is not cooled, and the back is hot when the hand is touched.
Solution: Observe the water circulation pipeline to see whether the cooling liquid is circulating, which may be lack of cooling liquid or the pump is damaged

Problem 2: The proportion of glue is not correct
Solution: Check whether the rubber ratio set value in the controller is correct, and the stator must be replaced if the ratio is still not correct after automatic compensation is turned off.

Problem 3: The machine suddenly stops and cannot be reset
Solution: Lack of glue alarm output signal, glue must be replaced

Problem 4: The pressure sensor always alarms
Solution: Check that the pressure alarm value is correct

Problem 5: Current overload alarm
Solution: Observe the motor current under the monitoring page, the current value is too large may be stator damage or internal dry glue.

Problem 6: Leakage of glue at the coupling
Solution: Replace the Fan ring regularly

Problem 7: Glue leakage or too tight in the mixing pipe can not be installed
Solution: The mixing pipe is divided into imported and domestic, which must be clearly used, and there is a special corresponding mixing pipe base