Welding Preparations - HERKULES IW 160 Manual De Instrucciones Original

Anleitung_IW_160_SPK7__ 02.07.14 08:14 Seite 16
GB

7. Welding preparations

Connect the earth terminal (9) direct to the part to be
welded or to the support on which the part is resting.
Ensure that the earth terminal is in direct contact with
the part to be welded. You should therefore avoid
coated surfaces and/or insulated materials. The
electrode holder cable has a special clamp at one
end, which is used to secure the electrode. The
welding safety shield must be used at all times for
welding. It protects your eyes from the radiation
emitted by the arc and nevertheless enables you to
watch the welding process (not included in items
supplied).
8. Welding
8.1 Welding with coated electrodes
Connect all the electrical connections for the power
supply and for the welding current circuit. Most
coated electrodes are connected to the positive pole.
However, some types of electrode have to be
connected to the negative pole. Ensure that you
observe the information supplied by the
manufacturer in relation to the type of electrode and
correct polarity. Fit the welding cables (8/9) to the
quick-lock couplings (5/6) accordingly. Then fasten
the unsheathed end of the electrode in the electrode
holder (8) and connect the ground terminal (9) to the
part you wish to weld. Ensure that a good electric
contact is made. Switch on the device and set the
welding current, depending on the electrode used,
using the potentiometer 819. Hold the safety shield in
front of your face and rub the tip of the electrode on
the part you wish to weld as if you were striking a
match. This is the best method of igniting an arc.
Check that you have the correct electrode and
current strength on a test part.
Important.
For welding currents in excess of 130 A (see red
area on the welding current scale), the fuse may trip
under certain circumstances if you use quick-acting
fuses.
Hold the safety shield in front of your face and rub
the tip of the electrode on the part you wish to weld
as if you were striking a match. This is the best
method for igniting an arc. Check on a test part that
you have the correct electrode and current strength.
16
Electrode (Ø mm):
1,6
2
2,5
3,2
4,0
Important!
Do not dab the workpiece with the electrode since it
could be damaged, making it more difficult to ignite
the arc.
As soon as the arc has ignited, attempt to keep it a
distance from the workpiece equivalent to the
diameter of the electrode.
This distance should be kept as constant as possible
during the welding process. The angle of the
electrode in the direction in which you are working
should be 20/30°.
Important.
Always use tongs to remove spent electrodes and to
move parts that you have just welded. Please note
that the electrode holder (8) must always be put
down so that it is insulated after you have completed
the welding work.
Do not remove the slag until the weld has cooled.
If you want to continue a weld after an interruption,
the slag from your initial attempt must first be
removed. When removing the slag you should wear
goggles to protect your eyes from sharp and/or hot
slag spatter.
8.2 Welding with TIG equipment
Please note that the appropriate gas for the
material you wish to weld must be used.
Steel (Fe) = ArCO2
Aluminum (Al) = Ar
(not supported by this equipment)
Stainless steel (V2A) = ArO2
(not supported by this equipment)
Connecting the equipment:
1. Connect the gas supply connector (12) to the
pressure reducer on the gas bottle.
Important.
Please note that for TIG welding, the cable with the
ground terminal (9) must be connected to the
positive pole (5) and the TIG equipment to the
negative pole (6).
2. Connect the TIG equipment to the negative pole
(6) on the front of the device. Connect the cable
with the ground terminal (9) to the positive pole
Welding current (A)
40 – 50
40 – 80
60 – 110
80 – 150
120 – 150