Lincoln Electric POWER WAVE S500 CE Operator's Manual page 11

UltimArc™ Control adjusts the focus or shape of the arc.
UltimArc™ Control is adjustable from -10.0 to +10.0 with
a nominal setting of 0.0. Increasing the UltimArc™
Control increases the pulse frequency and background
current while decreasing the peak current. This results in
a tight, stiff arc used for high speed sheet metal welding.
Decreasing the UltimArc™ Control decreases the pulse
frequency and background current while increasing the
peak current. These results in a soft arc good for out of
position welding (see figure below).
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1. UltimArc™ Control -10.0: Low Frequency, Wide.
2. UltimArc™ Control OFF: Medium Frequency and
Width.
3. UltimArc™ Control +10.0: High Frequency,
Focused.
Maintenance
WARNING
For any repair operations, modifications or
maintenances, it is recommended to contact the nearest
Technical Service Center or Lincoln Electric. Repairs
and modifications performed by unauthorized service or
personnel will cause, that the manufacturer's warranty
will become null and void.
Any noticeable damage should be reported immediately
and repaired.
Routine maintenance (everyday)

Check condition of insulation and connections of the
work leads and insulation of power lead. If any
insulation damage exists replace the lead
immediately.

Remove the spatters from the welding gun nozzle.
Spatters could interfere with the shielding gas flow to
the arc.

Check the welding gun condition: replace it, if
necessary.

Check condition and operation of the cooling fan.
Keep clean its airflow slots.
Periodic maintenance (every 200 working hours but
at list once every year)
Perform the routine maintenance and, in addition:

Keep the machine clean. Using a dry (and low
pressure) airflow, remove the dust from the external
case and from the cabinet inside.

If it is required, clean and tighten all weld terminals.
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The frequency of the maintenance operations may vary
in accordance with the working environment where the
machine is placed.
Do not touch electrically live parts.
Before the case of welding machine will be removed, the
welding machine had to be turned off and the power lead
had to be disconnected from mains socket.
Mains supply network must be disconnected from the
machine before each maintenance and service. After
each repair, perform proper tests to ensure safety.
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WARNING
WARNING
WARNING
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