Jula 210-020, Operating Instructions Manual

Page: 29 / 32

ENGLISH
29
OPERATION
Welding preparation
The earth clamp (2) is attached directly to the workpiece or the underlayer on which the workpiece is
placed.
Warning: Make sure there is a direct contact with the workpiece. Avoid painted surfaces and/or insulating
material. The electrode holder cable has a special clip at the end to clamp the electrode. Always use a
welding shield during the welding. This protects the eyes from arc radiation and still gives a clear view of
the workpiece.
Welding
When the welding transformer has been connected to the mains supply, proceed as follows:
Insert the bare end of the electrode in the electrode holder (1) and connect the earth clamp (2) to the
workpiece. Make sure there is a good electrical contact.
Switch on the welding transformer with the switch (4) and adjust the welding current with the knob (3),
depending on the electrode used. Hold the welding shield in front of your face and move the electrode tip
over the workpiece in the same way as you light a match. This is the best method to light the arc.
Test on a sample piece that the correct electrode and amperage have been selected.
Electrode Ø
(mm)
Welding current (A)
Type BX1-160CK
（
K=1, 2
）
BX1-160D, BX1-160F
2.0 mm 55 A
2.5 mm 80 A
3.2 mm 115 A
4.0 mm 160 A
WARNING!

Do not touch the workpiece with the electrode. This can damage the workpiece and make it more
difficult to ignite the arc.

As soon as the arc is lit, try to maintain a gap from the workpiece corresponding to the diameter of
the electrode.

This gap should as far as possible be held constant during the welding. The angle of the electrode
in the direction of the work should be 20º
–30º.
WARNING!

Always use a pair of tongs to remove consumed electrodes or move hot workpieces. Remember
that the electrode holder (1) must always be placed on an insulated surface after welding.

Slag must only be removed when the joint has cooled.

If the welding continues at a broken weld joint, the slag must be removed first from the application
point.
Overheat protection
The welding transformer is fitted with overheat protection. The control lamp (5) comes on if the overheat
protection is triggered. Allow the welding transformer to cool for a while.
NOTE!
A short loss of voltage may occur when the equipment is started, especially if there is poor contact with
the mains. This can affect other equipment (e.g. lamp flickering). Such interference is not to be expected
with a mains impedance of Zmax<1.00 OHM. (Contact your electricity supplier for further information.)
MAINTENANCE

Regularly clean the welding transformer from dust and dirt.

Cleaning is best done with a fine brush or cloth.