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1. When testing the resistance of the gantry machining center circuit, we must pay attention to turn off the power. It is best to test the resistance multiple times, with the larger resistance as the standard.
2. Think about the ban time, it is best to allow experienced personnel to perform maintenance. It is used to check for cracks, because the circuit board on most machines is a double-sided metal plate. Once cut, soldering and repairing is a very troublesome thing. There is also to avoid affecting other adjacent lines. 
3. The circuit board of the high-speed machining center taken out in time should remember the original position and restore a convenient position.
4. When soldering parts, be careful not to approach the circuit board for maintenance. If it is the soldering iron head of the submersible pump, it should be trimmed to suit the soldering of the integrated circuit. When welding, be careful not to touch other parts.
5. Record the switches and positions on the line and do not change randomly. The components on each board should be marked as the exchange of components to prevent the work from failing due to chaos
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