Starting and Operating Chapter 5
30.08.19 Working Instructions WIDOS 4600 Page 21 of 32
5.2. Welding Process
The respectively valid welding prescriptions (ISO / CEN / DVS...) are to be
basically followed.
There is the danger of serious bruising.
On the one hand between the inner clamping devices, on the other hand
between the outer clamping device and the end of the guide bar.
Do wear safety gloves as a protection against burning !
A stop-watch must be available for recording the actual times for heating and cooling.
A welding table must be available from which the parameters for the pipe dimensions to be welded
prescribed by the welding prescriptions may be taken.
The heating element surfaces are to be clean and, above all, free from grease.
Therefore they are to be cleaned with non-fraying paper and detergent (e.g. PE - cleaner)
before every welding or if they are dirty.
The anti-adhesive coating of the heating element has to remain undamaged in the working area.
Switch on the heating element and set the required welding temperature at the setting screw at the
handle. (look at 4.4 no. 10 - 12)
- when the control light is blinking, the desired temperature is obtained and maintained
by a certain pulse-position ratio.
Screw in the reduction inserts according to the outside diameter of the pipes to be welded.
Lay the pipes to be welded into the clamping devices, tighten firmly the clamping nuts and align the
pipes with respect to one another.
In case of long pipe ends, use WIDOS rollerstands for alignment.
Close the slides, thereby reading the movement pressure on the manometer.
The movement pressure is displayed exactly when the slide with the clamped-pipe passes over into
its movement.
Subsequently, open slides again such that the planer fits therebetween.
Insert the planer between the pipe ends, allow handle to lock with the security micro switch and
switch on.
There is the danger that the planer pulls in clothes !
In case planer is switched on it will run immediately as soon as the security micro switch
is pressed.
Do not hold the planer on its front sides in any case.
Move the pipe ends towards one another by means of the valve lever and plane same with a
planing pressure between 1 and 15 bar above the movement pressure.
Planing must be carried out until a revolving cutting has been formed on both sides.
Open the slides again by means of the valve lever, switch off planer motor, remove planer and put it
into the heat protection box.
Remove the produced cuttings without contacting the worked surfaces
Close slides.
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