Maintenance, care and disposal
General
099-005221-EW501
05.09.2016
47
6
Maintenance, care and disposal
6.1
General
DANGER
Incorrect maintenance and testing!
The machine may be cleaned, repaired and tested by skilled and qualified personnel
only. A qualified person is one who, due to their training, knowledge and experience,
can detect any hazards and possible consequential damage when checking the
machine, and can take the necessary safety measures.
• Observe the maintenance instructions
> see 6.3 chapter
!
• The machine may only be put into operation again once the testing has been successful.
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
Cleaning, testing and repair!
Cleaning, testing and repairing of the welding machine may only be carried out by
competent, qualified personnel. A qualified person is one who, because of his or her
training, knowledge 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 implement the required safety procedures.
• In the event of failure of any one of the following tests, 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
maintenance-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
Cleaning
• Clean the outer surfaces with a moist cloth (no aggressive cleaning agents).
• Purge the machine venting channel and cooling fins (if present) with oil- and water-free compressed
air. Compressed air may overspeed and destroy the machine fans. Never direct the compressed air
directly at the machine fans. Mechanically block the fans, if required.
• Check the coolant for contaminants and replace, if necessary.
