Specifications

ELECTRICAL CONNECTIONS
WARNING! THIS APPLIANCE MUST BE EARTHED.
A. MIG’s PRO-90 and 100E ONLY
These welders are fitted with a standard 13 amp BS 1363 plug, fitted with a 13 amp
fuse. Connect to a 230 volt (50Hz) domestic electrical supply and we strongly
recommend that this be done via a Residual Current Device (RCD).
IMPORTANT: If the welder is fitted with a plug which is moulded onto the electric
cable (i.e. non- re-wirable) please note:
1. The plug must be thrown away if it is cut from the electric cable. There is a danger of
electric shock if it is subsequently inserted into a socket outlet.
2. Never use the plug without the fuse cover fitted.
3. Should you wish to replace a detachable fuse carrier, ensure that the correct
replacement is used (as indicated by marking or colour code). Replacement fuse
covers can be obtained from your local dealer or most electrical stockists.
Fuse Rating
The fuse in the plug must be replaced with one of the same rating (13 amps) and
this replacement must be ASTA approved to BS1362.
B. MIG 150TE
Connect the mains lead, through a suitably fused isolator switch, to a 230 Volt
(50Hz) electrical supply, with a 20Amp fuse rating. A standard 13 Amp plug MUST
NOT be used with these welders.
C. ALL MODELS
IMPORTANT: The wires in the mains lead are coloured in accordance with the
following code:
Green & Yellow .......... Earth
Blue .......... Neutral
Brown .......... Live
As the colours of the flexible cord of this appliance may not correspond with the
coloured markings identifying terminals in your plug, proceed as follows:
• Connect GREEN & YELLOW cord to plug terminal marked with a letter “E” or
Earth symbol “ ”, or coloured GREEN or GREEN & YELLOW.
• Connect BROWN cord to plug terminal marked letter “L” or coloured RED.
• Connect BLUE cord to plug terminal marked letter “N” or coloured BLACK.
Extension Cable
If an extension cable is fitted, ensure the minimum cross section of the conductor
is 1.5mm
2
for up to 15 metres in length, and 2.5mm
2
for up to 25 metres.
14
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D. Trim the Welding Wire
Trim the welding wire so that it protrudes no more than 5mm from the end of the
shroud.
E. Attach the Earth Lead
Attach the earth lead to the workpiece with the earth clamp, as close to the
point of weld as possible, without it being intrusive.
Ensure there is good contact, if necessary, clean the area with a wire brush
beforehand....Remember, the contact MUST be on bare metal - thoroughly clean..
Your welder is now fully prepared for welding.
OPERATION
With the welding current set, and welding wire trimmed, set the wire feed control
to 6 , (8 for Aluminium). Plug the machine into the mains supply or switch on at the
isolator and ensuring all precautions have been taken and with the machine set
up correctly, lower the torch to the workpiece with one hand, whilst holding the
welding mask in the other.
Approach the work with the tip at an angle of approx. 45
O
and pull the torch
trigger fully. A welding current is now available at the tip and gas will be issued.
As the electrode touches the workpiece, an arc will be struck......BEFORE it is struck,
cover the face with the face mask.
Maintain a gap of approx. 5 - 7mm from the workpiece to the tip, and feed the
wire into the molten pool at a steady rate, along the line of the proposed weld.
The speed of weld will depend upon the wire speed and welding current.
NOTES:
As MIG welding is an acquired skill, it is strongly advised that, if you are not fully
familiar with this type of welding, you practise on a piece of material with the
same characteristics as that of your workpiece, until you are satisfied with the
result, and you have fine tuned your welder to produce a satisfactory weld.
One of the problems experienced with novice welders, is the welding wire sticking to the
contact tip. This is as a result of the wire feed speed being too slow. It is always better
therefore to start with too high a speed, and back off slightly, to avoid the possibility of the
wire welding itself to the tip. This is the reason position 6 is recommended for start up.
The Wire Feed control is for fine tuning the wire speed. The speed of wire delivery
will increase automatically as the current is increased from MIN to MAX, and vice
versa. Therefore, once the ideal speed is achieved, by fine tuning, it should not be
necessary to adjust this control when the welding current is changed.
Listen to the sound made. An irregular crackling sound denotes too high a wire
speed. Decrease the speed until a regular, strong buzzing sound is heard.