Read This First - ESAB Arc 4000i Service Manual

READ THIS FIRST

Maintenance and repair work should be performed by an experienced person, and
electrical work only by a trained electrician. Use only recommended replacement parts.
This service manual is intended for use by technicians with electrical/electronic training for
help in connection with fault--tracing and repair.
Use the wiring diagram as a form of index for the description of operation. The circuit
boards are divided into numbered blocks, which are described individually in more detail in
the description of operation. Component names in the wiring diagram are listed in the
component description.
Use the spare parts list as a guide to where the components are located in the equipment.
The spare parts list is published as a separate document, see page 77.
This manual contains details of design changes that have been made up to and including
February 2008.
The manual is valid for:
Mig U4000i, Mig 4000i, Tig 4000i and Arc 4000i with serial no. 803--xxx--xxxx.
Note! Mig U4000i, Mig 4000i, Tig 4000i and Arc 4000i with serial number 105- -xxx- -xxxx to
802- -xxx- -xxxx differ from the description in this manual. For those machines there is
another service manual with file name 0740 800 166
The Mig U4000i, Mig 4000i, Tig 4000i and Arc 4000i are designed and tested in
accordance with international and European standards IEC/EN 60974.
On completion of service or repair work, it is the responsibility of the person(s)
performing the work to ensure that the product still complies with the requirements of
the above standard.
CAUTION!
Read and understand the instruction manual before
installing or operating.
WARNING!
Many parts of the power source are at mains voltage.
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S0740 800 191/E080229/P78