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- Do not touch the electrode while holding the button on the handle. The high voltage of the
ionizer and the unloaded voltage then occurring at the electrode can cause electric shock
9
、
Routine maintenance
Warning
：
All the maintenance and repair jobs must be carried out when the power is cut-off
completely. Make sure the power plug is disconnected before opening the shell.
1 Dust should be removed with dry and clean compressed air regularly. If the welder is used in a
heavily polluted environment with dense smoke and polluted air, dust must be removed from the
welder each month.
2 The pressure of compressed air should be reasonable so that damage is not done to small elements
in the welder.
3 Regularly check the connection of electric circuit in the welder and make sure circuit be
connected properly and joint is secured (especially inserted joint or element). If the cases of
rusting or loosening are found, the rust layer or oxidized film should be removed with abrasive
paper and then the joint should be connected again and tightened firmly.
4 Entry of water or steam into the interior of the welder should be avoided. If this condition occurs,
the welder should undergo drying treatment. Then the welder is measured for insulation by a
megohm-meter (including the area between connecting points and the areas between the
connecting points and shell). Welding can go on only when evidence shows no abnormality.
5 If the welder is not to be used for a long time, it should be replaced in the original package and
kept in a dry environment.
