Maintenance, care and disposal
General
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099-008232-EW501
26.05.2020
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Maintenance, care and disposal
6.1 General
DANGER
Risk of injury due to electrical voltage after switching off!
Working on an open machine can lead to fatal injuries!
Capacitors are loaded with electrical voltage during operation. Voltage remains present
for up to four minutes after the mains plug is removed.
1. Switch off machine.
2. Remove the mains plug.
3. Wait for at last 4 minutes until the capacitors have discharged!
WARNING
Incorrect maintenance, testing and repair!
Maintenance, testing and repair of the machine may only be carried out by skilled and
qualified personnel. A qualified person is one who, because of his or her training, know-
ledge and experience, is able to recognise the dangers that can occur while testing
welding power sources as well as possible subsequent damage, and who is able to im-
plement the required safety procedures.
Observe the maintenance instructions
> see 6.2 chapter
.
• In the event that the provisions of one of the below-stated tests are not met, the machine
must not be operated again until it has been repaired and a new test has been carried out!
Repair and maintenance work may only be performed by qualified authorised personnel; otherwise the
right to claim under warranty is void. In all service matters, always consult the dealer who supplied the
machine. Return deliveries of defective equipment subject to warranty may only be made through your
dealer. When replacing parts, use only original spare parts. When ordering spare parts, please quote the
machine type, serial number and item number of the machine, as well as the type designation and item
number of the spare part.
Under the specified ambient conditions and normal working conditions this machine is essentially mainte-
nance-free and requires just a minimum of care.
Contamination of the machine may impair service life and duty cycle. The cleaning intervals depend on
the ambient conditions and the resulting contamination of the machine. The minimum interval is every six
months.
6.2 Maintenance work, intervals
6.2.1 Daily maintenance tasks
• Check welding torch, hose package and power connections for external damage and replace if neces-
sary or arrange for repair by specialist staff.
• Check gas and water connections for leaks. Seal properly if necessary.
• Check the cooling device for the welding torch cooling and, if necessary, power source cooling for
proper functioning and the coolant level. If necessary, top up with demineralised water or the specified
coolant. Arrange for repair if necessary.
• Check the wear parts in the welding torch including the gas lens and the sealing ring of the gas nozz-
le.
• For welding torches with cold wire feed: Check the cold wire feed nozzle and clamping nut on the cold
wire feed tube.
