Service manual

Edition 101222
-- 4 --
s1Cad160
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
board is divided into numbered blocks, which are described individually in more detail in
the description of operation. All component names in the wiring diagram are listed in the
component description.
This manual contains details of all design changes that have been made up to and
including December 2010.
The Caddyr
rr
r Mig C160i is designed and tested in accordance with international and
European standard IEC/EN 60974--1/--5/--10 and EN 61000--3--12.
On completion of service or repair work, it is the responsibility of the person(s) etc.
performing the work to ensure that the product does not depart from the requirements
of the above standard.
INTRODUCTION
Caddyr
rr
r Mig C160i is inverter based, portable semiautomatic welder in a compact
design, intended for solid steel welding.
The possibility of welding with homogeneous wire/shielding gas and welding with
gasless tubular wire is obtained by switching the + and -- connections on the
switching terminal close to the wire feed unit.
Basic wire diameter is 0,8 mm, though 0,6 and 1,0 mm are also applicable -- it
depends on work--piece size and material. As shielding gas the ArCO
2
or pure CO
2
may be used.
The Caddyr Mig C160i draws current with near--unity power factor which produces
very low level harmonics in mains.