Maintenance And Cleaning - Jackle JESS WELDING maxiMIG 250 Betriebsanleitung

8 Maintenance and cleaning

7.3.2 Wire guiding in the welding torch cable assembly
The friction resistance of the welding wire in the wire guide coil increases with the length of the cable
assembly. Therefore, the cable assembly should only be as long as necessary. When processing aluminium
welding wire, it is recommended that you replace the wire guide spiral with a Teflon wire guide liner. The
torch cable assembly must not exceed a length of 3 m.
It is recommended that you air-blast the wire guide spiral and the wire guide tube with compressed air after
you finish welding one spool of wire. The gliding quality of the wire guide spiral deteriorates in accordance
with the amount of wire that is fed and the wire properties. If wire guiding deteriorates noticeably, replace
the wire guide spiral.
8 Maintenance and cleaning
NOTICE
The maintenance intervals are standard values and refer to single-shift operation.
When using arc welding equipment, always observe the provisions of EN 60974-4 Inspection and testing,
as well as any national laws and regulations.
Electric shock
The following instructions must be adhered to during all maintenance, servicing, assembly, disassembly
and repair work:
• Switch off the power source.
• Close off the gas supply.
• Close off the compressed air supply.
• Disconnect all electrical connections.
• Switch off the entire welding system.
The welding power source is virtually maintenance-free.
However, Jäckle & Ess Systems GmbH recommends the following maintenance tasks:
EN - 12
DANGER
• Clean the contact tip and gas nozzle regularly to remove weld spatter and dirt. Apply anti-spatter
agent to nozzles after cleaning to reduce spatter adhesion.
• Check the contact tip regularly for wear and damage and replace it in good time.
• Vacuum clean the interior of the machine if necessary, depending on the level of dirt present.
maxiMIG 250/300
BA-0005 • 2020-10-19