Leister TWINNY S Instrucciones De Funcionamiento página 22

WELDING
Welding procedure
• Check – The drive/pressure rollers (22/23) as well as the combi-wedge
– Required welding temperature must be achieved
– Cable length / cable guide
• Guide and position the automatic welding machine into the over-lapped
geomembrane liner or film.
• Switch on drive (25)
• Engage the hot wedge (18)
• Pull the lever (10)
• Check the welded seam (wash/seam thickness reduction). As required,
adjust the welding speed with the potentiometer for drive (26).
• The automatic welding machine is guided along the overlap with the guide
bar (14) or at the guide handle (15), so that the frontal width of the overlap
is kept within the 20 mm / 0,8 inch zone (see illustration B).
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• Release the tension lever (10) and pull the combi-wedge out of the overlap
and swivel up.
• Switch off the drive motor (25). Set potentiometer heater (5) to zero to let the
combi-wedge (18) cool down. Then switch off the heating (4).
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(18) must be clean before engaging them into the geomembrane
liner or film.
Beginning of the welding process
End of welding process
Illustration B
Max. frontal width
of overlap
20 mm
0,8 inch