Start Welding - Sievert TW 5000 Mode D'emploi

START WELDING

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IMPORTANT! Always perform sample welds before welding actual production membrane to
ensure proper setting of temperature, air flow and speed. See test and control of welding seam.
The machine is equipped with adjustable front wheels to avoid sliding when welding at different angles.
The front wheels are preset in the factory for welding in a horizontal position.
▪ If you are welding at an angle,
adjust the front wheels by turning the
front wheel adjustment knob located
at the base of the frame until you
achieve proper, straight movement of
the machine.
TEST AND CONTROL OF THE WELDING SEAM
Always conduct test welds before you begin any
job. Materials will vary between manufacturers
therefore the machine settings will vary as well.
Always check with the material manufacturer for
the proper specifications and machine settings
for their material. It should be noted that ambient
temperature plays a large part in the machine
settings. The warmer it is outside the faster you
can run the machine. If you are welding in cold
climates, you will have to slow the machine and
increase the temperature. Additional weights for
the machine are available to add if needed. Start
your test weld without the weights and add them
accordingly until you achieve an optimum weld.
Set the machine´s temperature, speed, and weight
according to the manufacturer's specifications and
environmental/ambient conditions. Run test welds
OPERATION
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▪ Release the welding nozzle with the trigger, then lower and guide it to the
left underneath the overlapping membrane until it locks. The machine will start
automatically when the nozzle is in its locked position. For instruction on how
to stop the machine, please see section on "Stopping the machine and cooling
down". If the automatic system is failing, you can start and stop the machine
manually with the run button.
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and take samples before production welding.
Test the welds to ensure that the tests are within
manufacturer specifications. Save the test samples
for proof that you conducted test welds before you
started the job. Test welds should be done again
if the environmental/ambient conditions change
during the day.
By means of visual inspection you can check the
quality of the welds. The material must be welded
all the way to the edge of the overlap. This can be
checked with a probe tool, similar to an awe. Run
the probe along the seam to test the integrity of your
welds. With PVC you will find a bead of PVC that
has formed along the seam, called bleed through.
This is acceptable and indicates a proper weld, as
long as it is not darkened or shows any burning.
With TPO materials you will not see this bead.
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