NewArc NewArc R4000CC, Operational Manual

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16 R4000CC
5. Maintenance
Note!
All Electric shocks are potentially fatal, switch off the machine and unplug from the
mains supply before carrying out any maintenance work.
It is very important that the R4000/R5000 is regularly maintained. The amount of use and the
working environment must be taken into account when scheduling the maintenance periods.
Careful use and regular preventative maintenance will prolong the life of the machine and
ensure trouble free operation.
Weekly
• Clean the exterior of the machine.
• Inspect the machines exterior for obvious signs of damage.
• Check the condition of the welding cable, earth clamp and welding output connectors for damage
and any sign of over-heating
• Check the condition of the mains cable and plug.
Three monthly
As per the weekly schedule, plus:
• Remove the lid from the machine and remove the build up of dust and debris from inside the machine
using, either, compressed air at low pressure or an industrial type vacuum cleaner.
• Make a thorough visual inspection of the interior of the machine, look particularly for pieces of welding
wire, or stubs of old welding rods that may have got through the cooling air intakes.
• Check the condition of the mains input connector, look for loose terminal block screws and make sure
the sheath of the mains cable is still clamped securely in the combined cable entry/clamp. Make sure
the earth wire is still securely fastened to the earth stud.
• Check the condition of the welding output connectors, look for any signs of discoloration. This could be
an indication of overheating and can be a cause of welding set failure.
Annually
As per the three monthly schedule, plus:
• The machines should be have its calibration checked, if necessary have the machine re-calibrated by
a Newarc trained technician.