Welding Preparations; Overheating Guard - EINHELL BT-EW 150 Mode D'emploi

Anleitung_BT_EW_150_SPK1:_
GB
Mains connection:
Welding current (A) at cos Ê = 0.73:
ø (mm)
I
2
t (s)
w
t (s)
r
Idling voltage (V):
Power input: 4 kVA at 80 A cos Ê = 0.73
Fuse (A):
5. Assembling the welding screen (Fig.
2-5)
Insert the safety glass (9) and then the welding glass
(10) in the welding screen (8). Now fasten the welding
screen holder (11) to the welding screen, as shown in
Fig. 5.

6. Welding preparations

Connect the earth terminal (-) (2) 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.
7. Welding
After you have made all the electrical connections for
the power supply and for the welding circuit, you can
proceed as follows:
Insert the unsheathed end of the electrode into the
electrode holder (1) and connect the earth terminal
(-) (2) to the part you wish to weld.
Ensure that a good electric contact is made.
Switch on the welding set at the switch (4) and set
the welding current using the hand wheel (3) to suit
the electrode you wish to use.
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 the arc.
Check that you have the correct electrode and
current strength on a test part.
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230 V ~ 50 Hz Electrode (Ø mm):
40 - 80
1,6
1.6 2.0 2.5
2
40 55 80
2,5
217 116 64
Important!
1450 1381 1351
Do not dab the workpiece with the electrode since it
48
could be damaged, making it more difficult to ignite
the arc.
16 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 (1) 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.

8. Overheating guard

The welding set is fitted with an overheating guard
that protects the welding transformer from
overheating. If the overheating guard trips, the
control lamp (5) on your set will be lit. Allow the
welding set to cool for a time.
9. Maintenance
Remove dust and dirt from the machine at regular
intervals. Cleaning is best carried out with a fine
brush or a cloth.
Welding current (A)
40 A
40 - 80 A
60 - 100 A