The welding process on these machines is automated and the setup are not difficult Upsetting pressure is set-up by means of a dial calibrated for wire diameter Welding current is picked by a rotary switch Releasing the foot pedals leaves the wire clamped under adequate pressure Wires to be joined should be cut straight, exactly at right angles and free from burrs Electrode positioning is altered by a lever set against a plate calibrated for wire diameter Wire ends are clamped by spring loaded clamping tool which can be opened singly or collectively through foot pedals