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2 PrOCESSINg<br />
24<br />
Part C: Heating-element butt-welding with<br />
the butt-welding machine type: Light<br />
Preparation of pipe ends and fusion<br />
1. 5.<br />
Arrange and align the welding machine, plug in the hose of the<br />
hydraulics and energize the welding device and milling cutter.<br />
2.<br />
Place the first pipe end in the in the mounting clamps. Align it<br />
with the upper mounting clamp and fix it.<br />
3.<br />
Place the other pipe end in the same way in the mounting<br />
clamps, align and fix it with the mounting clamp.<br />
4.<br />
Insert the milling cutter between the pipe ends and fix it with the<br />
locking at the frame of the machine slide. The power-on of the<br />
tool only works with correct locking.<br />
Switch on the milling cutter and drive up the pipe ends slowly in<br />
the machine slide to the milling cutter by operating the hydraulic<br />
system.<br />
6.<br />
By using the hydraulic system the pipe ends are milled plane at<br />
the face side with light pressure to the milling cutter.<br />
7.<br />
If the milling flake is circumferentially, drive apart the machine<br />
slide, take the milling cutter away and remove the debris.<br />
8.<br />
Drive the machine slide slowly together again. The pipe ends<br />
must fit planar. Control clearance and then adjust the pressure<br />
at the hydraulic system in accordance with the data sheet.
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