Clarke MIG220TE, Инструкция по эксплуатации и обслуживанию

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Thermal Overload (MIG220TE)
The ‘Thermal Overload’ is a safety device which shuts off the welder when the duty cycle has
been exceeded. This is to prevent damage to the machine caused by overheating.
When this occurs, the warning lamp will glow (amber). Allow the welder to cool, until the amber
light extinguishes before resuming.
For details of the duty cycle...i.e. the length of time the machine may be used at a particular
welding current, refer to the data and not
es on page 24.
Burn Back Adjustment
This takes the form of a trimmer, located between the control knobs on the front panel which can
be adjusted with a screwdriver eitther clockwise or anti-clockwise.
It is used to regulate the amount of welding wire to “burn back” after releasing the trigger of the
torch. For example, if this is set to Maximum, when the weld is finished, the wire will burn back
almost to the nozzle tip. Initially set the trimmer to an intermediate setting but this may be
adjusted according to the diameter of wire being used.
GENERAL INFORMATION
Spot Timer Control
This control may be used for spot (plug) welding, or stitch welding. The control is set so that the
duration of weld lasts for a predetermined time.
For plug welding, a special nozzle is required, (see your CLARKE dealer) which is pressed hard
against the two pieces of material to be welded, as the trigger is pressed. The arc will last for a
predetermined time, depending upon the control setting, melting the metal and fusing the two
parts together.
Allow a short period with parts held together before withdrawing the nozzle.