Repair method for super strong permanent magnet suction cups.

1、 All electric motors cannot start

1. Check whether the FUl melt of the fuse is blown, and whether the connector is loose or burnt out.

2. Check whether the contact of the power switch Qs is outstanding, whether the wiring is loose or dropped, and whether there is oil dirt on the contacts.

2、 The grinding wheel motor cannot start

1. The front bearing bush of the grinding wheel motor is worn, and the motor is blocked. The bearing bush should be repaired or replaced.

2. If the grinding amount of the grinding wheel is too large, causing the motor to stall, the grinding amount should be controlled.

3. If the FR2 standard for the thermal relay is incorrect or not adjusted properly, the thermal relay should be selected and adjusted based on the rated current of the grinding wheel motor.

3、 The cooling pump motor cannot start

1. The XPl connector is damaged and should be corrected or replaced.

2. The cooling pump motor is damaged and should be corrected or replaced.

4、 The oil pump motor cannot start

1. If the SB2 contact is poor, the contact should be corrected.

2. The KMl coil of the contactor is burnt out, and the contactor should be corrected or replaced.

3. The oil pump motor is burnt out and should be corrected or replaced.

5、 The super strong permanent magnet suction cup has no suction force

1. If the fuse FUl or FU4 melts, the melt should be replaced.

2. The XP2 connector has poor contact and should be repaired or replaced.

3. If two adjacent diodes of the rectifier equipment are short circuited, and the temperature of the short circuited tube and rectifier transformer is high at this moment, and the output voltage is zero, the rectifier diode should be replaced.

4. If two adjacent diodes of the rectifier equipment are open circuited and the output voltage is zero, the rectifier diode should be replaced.

5. The electromagnetic suction cup coil is open circuit and should be repaired or replaced.

6. The KV coil of the undervoltage relay is open circuit, and the relay should be repaired or replaced.

6、 Electromagnetic suction cup lacks suction force

The coil of the super strong permanent magnet suction cup is locally short circuited, and the rectification voltage is high when no-load, while the voltage drops significantly (below 110 volts) when connected to the electromagnetic suction cup. The electromagnetic suction cup should be corrected or replaced. (2) The components of the rectifier equipment are damaged. If a diode is open circuit, the rectifier output voltage is half of the normal value, and the temperature of the open circuit diode and the diode of the opposite arm is lower than that of the other two arm diodes; If two adjacent diodes are disconnected, the output voltage is zero.