Appendix A / Adjustment of short-cycle drawn arc welding guns
Appendix A /6
1.5
Adjusting the height of lift
The height of lift is the distance the stud is lifted from the workpiece during the welding
process. This distance is required for igniting the arc. Determination and adjustment of
the lift is the same for welding with both support tube and ceramic ferrules. The height
of lift always depends on the stud diameter.
How to determine the height of lift
• Adjust function "lift test" at the stud welder.
• Place welding gun on the workpiece
• Press gun switch. Stud holder (2) and stud (3) are lifted from workpiece (1). The lift
is adjusted with the help of the adjusting screw (6) located at the back of the welding
gun
How to adjust the height of lift
• Insert screwdriver into the groove of adjusting screw (6) located at the back of
welding gun and adjust by turning the screwdriver to the left or to the right, until the
required height of lift is obtained. Turning to the left increases the height of lift, turning
to the right decreases the height of lift. One turn of the adjusting screw corresponds to
approx. 1 mm. After adjustment, check the height of lift and correct, if necessary.
With the PH-3N stud welding gun, the height of lift can be adjusted by
turning the end cap (6) at the rear of the welding gun to the left or to the
right. Tools are not required.