ESAB Aristo Mig 3001i, Service Manual

Page: 64 / 76

S0740 800 196/E101019/P76
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cz01_general
IN-SERVICE INSPECTION AND TESTING
in accordance with IEC 60974-4.
General requirements
Qualification of test personnel
Tests of welding power sources can be hazardous and shall be carried out by an expert in
the field of electrical repair, preferably also familiar with welding, cutting and allied
processes.
Test conditions
Tests shall be carried out at an ambient air temperature between 10 °C and 40 °C on a dry
and cleaned welding power source.
Measuring instruments
The accuracy of measuring instruments shall be class 2.5 as a minimum, except for the
measurement of insulation resistance, where the accuracy of the instruments is not
specified but shall be taken into account for the measurement.
The voltmeter shall have an internal resistance of at least 1MΩ and indicate mean value.
Periodic inspection and test
Periodic inspection and test shall be carried out in accordance with manufacturers
instructions and local regulations. The periodic inspection and test consists of:
S
Visual inspection, (see Visual inspection, page 65)
S
Electrical test (see Electrical test, page 66)
The inspection and test shall be documented in a test report, (see Test report, page 69).
A signed and dated label shall be attached to the equipment after an approved test.
After repair, inspection and test
After repair, inspection and test shall be carried out according to manufacturers instructions
and local regulations. The after repair, inspection and test consists of:
S
Visual inspection, (see Visual inspection, page 65)
S
Electrical test (see Electrical test, page 66)
S
Functional test (see Functional test, page 68)
The inspection and test shall be documented in a test report, (see Test report, page 69).
A signed and dated label shall be attached to the equipment after an approved test.