Leister COMET Instructions D'utilisation page 27

Welding procedure for tunnel construction, groundworks and hydraulic engineering
Adjust welding parameters
•
• The hot wedge temperature must be reached.
Guide and position the automatic welding machine into the over-lapped geomembrane liner or film.
•
Switch on drive motor with
•
• Engage the hot wedge (7).
• Apply pressure to the lever for welding pressure (9).
Start of welding process
• Check the welded seam (welded bead / weld path).
If required, correct the speed with the keys
• The automatic welding machine is guided along the overlap with the
guide handle (13), so that the frontal width of the overlap is kept
within the 20 mm / 0,8 inch zone
End of welding process
1 cm before the end of the welded seam release the tension lever (9) and pull the hot wedge (7) out
•
of the overlap and lift up.
• Switch off the drive motor with key
(press both at the same time) on the keyboard (4).
After completion of the welding work, allow the hot wedge (7) to cool down and remove the
230
400
power supply cord from the mains socket.
(see page 23, 24).
key on keyboard (4)
M
– +
(see diagram B)
M
on the keyboard (4). Switch off the heating with the keys
on the keyboard (4).
.
Diagram
21
15
23
Max. frontal
width of overlap 20 mm
H
B
+
27