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MAINTENANCE
The following items demand special attention:
Wire feed unit
This unit is to be checked regularly at the wire feed roller and the wire nozzles, as it is of great importance for
a satisfactory welding result and a minimum of wear and tear that the wire passes through the mechanism
without any deformations of the wire or the wire feed roller.
The wire nozzles should often be checked and changed if the copper coating of the wire is damaged on its
way through the nozzles. Copper dust may totally hinder free passage through the wire liner.
A weekly check and cleaning of the nozzles as well as the wire feed roller is recommended.
Welding hose
Great care should be taken that the welding hose is not overloaded. It should not be pulled over sharp edges,
and other heavy machines should not run over it as it may damage the wire lines. The hose should be
dismantled every week and blown out with dry air.
Welding torch
There are many parts in the welding torch that have to be cleaned regularly. The main ones are the contact tip
and the gas nozzle. During the welding process, these parts are bombarded with spatter that sticks in the
nozzles. This may disturb the shielding gas flowing from the gas nozzle down to the molten pool.
Otherwise, if the gas nozzle is blocked up with spatter, there is a danger that a short-circuit will occur between
the contact tip and the gas nozzle. The spatter should therefore be removed regularly and spatter remover
applied in order to prevent spatter from burning into the nozzles. During the cleaning process, the gas nozzle
should be removed.
DO NOT CLEAN BY BEATING THE TORCH
Power source
The rectifier and transformer should be blown out with dry air occasionally, otherwise the air circulation will be
affected by the dust.
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