Maintenance; The Welding Torch; Cables; The Power Source - Kemppi MasterTig ACDC 3500W Operating Manual

8.

MAINTENANCE

The amount of use and an unusual working environment
have a special effect on the need for maintenance.
Proper use and preventive maintenance will help to
ensure trouble-free operation of the machine without
unexpected interruptions.

8.1 The welding torch

Due to high temperatures and wear, the welding end of
the TIG torch requires maintenance most, but also the
condition of the other parts should be checked regularly.
8.1.1 The welding end
Check that...
• all insulations of the welding end are
undamaged and in place.
• the gas nozzle is undamaged and suitable for
the work.
• the flow of the shielding gas is free and even.
• the electrode is undamaged. Use an electrode
size and tip sharpening which are suitable
for the welding job. Sharpen the electrode
lengthwise.
• the fastening parts of the electrode are
undamaged and that the electrode is tightly
fastened in its place.
8.1.2 The torch cable
Check that...
• the insulation of the handle and the torch cable
are undamaged.
• the torch cable has no sharp bends.
Note! Always replace any damaged parts
immediately!
Follow the instructions of the torch manufacturer in all
maintenance and repair measures.

8.2 Cables

Check the condition of the welding and connection
cables daily.
Note! Do not use damaged cables!
Check also that the mains connection cables that you use
are in good condition and that they comply with all the
regulations!
Mains connection cables may be repaired and installed
only by an authorized electric shop or electrician.

8.3 The power source

Note! Disconnect the plug of the machine from the
mains socket and wait for ca. 2 minutes (capacitor charge)
before removing the casing plate.
Check at least very six months:
• The electric connections of the machine– clean
any oxidized parts and tighten any loose ones.
Note! You must know the correct tension torques
before you start to repair the connections.
• Clean the inner parts of the machine from dust
and dirt e.g. with a soft brush and a vacuum-
cleaner.
• Do not use pressurized air, because there is the
danger that the dirt is packed even more tightly
in the gaps of the cooling profiles. Do not use a
pressure washing device.
• Only an authorized electric shop or electrician
may repair the machine.
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© Kemppi Oy 2021

8.4 Regular maintenance

KEMPPI Service Repair Shops handle regular
maintenance by agreement.
Regular maintenance includes e.g. the following:
• Cleaning of the machine.
• Checking and maintenance of the welding tools.
• Checking the clamps, switches and
potentiometers.
• Checking the electric connections.
• Checking the mains cable and plug.
• Replacement of any parts that are damaged or in
poor condition.
• Maintenance testing. The operation and
performance values of the machine are checked
and, where necessary, adjusted by means of test
equipment.
MasterTig ACDC 3500W R01