OPERATING
Leister WELDPLAST S4 / EC4 hand extruder
11
Starting the welding process
Welding work should comply with German Welding Association (DVS) guidelines.
• Fit the appropriate
welding shoe (8)
as required.
• Set the
potentiometer (3)
to max.
• Once the operating temperature is reached («READY*» status), welding can
begin.
• Activate the
motor on/off switch (2).
• Insert welding rod with a diameter of 3 or 4 mm into the
welding rod opening (12).
• The welding rod is automatically drawn in through the
welding rod opening (12).
The rod should feed in without resistance.
• Interrupt the passage of plastizised material with the
motor on/off switch (2).
• Direct the
pre-heating nozzle (9)
towards the welding zone.
• Preheat the welding zone with a fanning motion.
• Place the tool over the prepared welding zone and reactivate the
motor on/off
switch (2).
• Produce a test weld and analyse it.
• Adjust the temperature setting and welding output as required.
• For a prolonged welding process, the
motor on/off switch (2)
can be kept in con-
tinuous operation by means of the
locking device (4).
• Release the
locking device (4)
of the
motor on/off switch (2)
as applicable,
and then let go of the
motor on/off switch (2).
Remove welding material in the
welding shoe in order that the welding shoe is not damaged with the next start
• Switch off the heating with the
button (26)
”Enter”.
• Let the tool to cool down for approx. 5 min.
• Switch off at the
main switch (1).
CAUTION!
Never insert into both welding rod openings simultaneously. Never operate
the tool without welding rod.
Switching off the tool