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Kemppi A7 TIG Orbital System 300 Manual

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A7 TIG Orbital System 300© Kemppi Oy 2016 1615
OPERATING MANUAL
6. MAINTENANCE
When considering and planning routine maintenance, please consider the frequency of
machine use and the working environment.
Correct operation of the machine and regular maintenance will help you avoid unnecessary
downtime and equipment failure.
Disconnect the machine from the mains before handling the electrical cables.
6.1 Preventing tungsten electrode rotation not concentric to
tube OD
To avoid inconsistent penetration and weld bead width, do the following:
• Maintain an equal gap ± 0.1mm Total Indicated Runout (TIR) as tungsten rotates
around the workpiece.
• Specify collets to ± 0.5mm when ordering.
To avoid run out as the tungsten rotates around the tube ends, use external alignment
clamp or extended collets.
6.2 Periodic maintenance
Periodic maintenance should only be carried out by a suitably qualied person.
Disconnect the plug of the machine from the mains socket and wait about 2 minutes
(capacitor charge) before removing any parts.
Check at least every half year:
• Electric connectors of the machine – clean any oxidized parts and tighten loose
connections.
Do not use compressed air for cleaning as there is a risk that the dirt will compact even
more tightly into gaps of cooling proles.
Do not use pressure washing devices.
Only an authorized trained electrician should carry out repairs to Kemppi machines.
Calibration
Calibrate the system every twelve (12) months. Contact Kemppi service for detailed
instructions.
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