First, the reasons for poor contact of microswitches
There are several reasons for poor contact of microswitches:
1. Contact corrosion: After the switch is used for a long time, there will be oxide deposition on the contact, resulting in poor contact.
2. Contact gap is too large: When the switch is operating, due to the contact gap is too large, resulting in poor contact.
3. Path short-circuit: The internal path of the switch is short-circuited, resulting in poor contact.
4. Failure: The switch itself will fail after a period of use, such as the slack or crack of the contact spring.
Second, the solution of poor contact of micro-switch
1. Clean contacts: After disconnecting the switch, clean contacts with detergent or alcohol cotton to remove oxide deposits and restore contact performance.
2. Adjust the contact gap: After the switch is disassembled, adjust the contact gap with the adjustment tool to ensure that it is within the specified range.
3. Replace the switch with a new one: If the switch has failed or cannot be repaired, replace the switch with a new one.
4. Reduce the load current: If the load current connected to the switch is too large, it is easy to cause bad contact. Therefore, it is recommended to reduce the load current.
