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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
OPERATION - WELDING
The welding capabilities of your welder are given on the data label printed on
the rear panel of the machine, and reproduced on page 16. An explanation
of markings and symbols appearing on the data label is shown on page 21.
THERMAL OVERLOAD PROTECTION
If the duty cycle of the welder is exceeded (see Specifications), the Overload
Protection Device will automatically cut the power to prevent damage to the
machine. Should the cut-out operate, you will have to wait until the
transformer cools down (approx. 30 minutes), when the overload device will
automatically reset itself.
Although no harm will be done to the machine if/when the overload device is
actuated, its frequent use could eventually result in damage.
PREPARATION FOR WELDING
1. Set the GEN/WELD knob - ‘A’, Fig.1 to WELD.
2. Set the Welding Current knob - ‘B’, Fig.1, to the appropriate welding
current noting that TWO ranges are provided - HIGH and LOW.
•
High range is indicated in RED, Low range in BLACK
3. Connect the welding lead to the appropriate DIN socket:
•
135 Amp - LOW range
•
200 Amp - HIGH range.
4. Connect the earth lead to the COM DIN socket.
Ensure the earth lead is connected to the work piece.
IMPORTANT: Ensure also that the earth clamp is attached to clean, solid
metal. If necessary thoroughly clean with a wire brush or similar to
guarantee a good connection.
5. Select the appropriate electrode, which should be approximately the
same thickness as the piece to be welded, for single pass welding.
NOTE:
With practice you will get a feel for the best current settings for
different welding rod thicknesses.
The chart below gives an indication of the thickness of material/welding rod
thickness and the corresponding welding current. This is intended as a guide
only.
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