3.4 Start-up of the welding gun ESP 1 ISO
With the ESP 1 ISO welding gun, insulating mats can be fastened to a metallic wall with cup head pins. The pin
is pushed through the insulating mat, the mat should be a few millimeters thicker than the length of the pin.
Upon initiation of the welding process, the tip of the pin melts and the underlying sheet melts. After complete
discharge of the capacitor, the melt cools, it creates a solid connection between disc pin and plate.
1. Attention: Perform all adjustment work on the gun only with the power source switched off!
2. Slide the stud holder for the cup head pins (magnetic stud holder) as far as possible into the gun and tighten
the clamping nut with a socket wrench SW 17.
3. Place a cup head pin on the stud holder and prick the pin through the insulation.
4. Push the gun far enough in the direction of the sheet that the piston springs in a few millimeters.
5. Press the push button; the capacitor is discharged and the pin is connected to the plate.
6. Pull the gun off the plate.
7. If necessary, clean the copper disc of the stud holder from traces of scorch marks. A clean surface reduces
wear.
Note: The welding time depends on the contact pressure; the more the spring is preloaded, the shorter the
welding time. Avoid loading the spring as far as it will go, because then the welding time may be too short. The
correct contact pressure (welding time) must be determined by tests.
Issue 4/2019 ver. 2.0 page 15 of 42
Köster & Co. GmbH • D-58256 Ennepetal • Spreeler Weg 32 • Tel. +49 2333 8306-0 • Fax +49 2333 8306-38
Internet: http://www.koeco.net • E-Mail: koeco@koeco.net
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