The weld arms, holders, and tips are all part of the secondary circuit. We will talk about this later as a maintenance item. Top Maintenance Most important to proper maintenance of resistance welding equipment is a thorough understanding of resistance welding principles and the mechanical functions of the machine. The original installation of a piece of equipment has a large bearing on its subsequent operation and trouble free operation. Electric service, improperly installed, can ruin a machine in the blink of an eye.
Improper installation can also present potentially fatal electric shock.
Make sure a qualified technician makes these connections. Cooling water and air service must also be properly connected to insure the machine will operate in a safe, efficient manner. The machine should be securely anchored to the floor to prevent movement of the machine. If the machine should move, the various connections could be broken, potentially causing an unsafe condition. The area should have an adequate light source.