A SERVICE OF

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cmek2de1
LIST OF CONTENTS Page
READ THIS FIRST 2..................................
COMPONENT DESCRIPTION 4........................
CONNECTION DIAGRAM 5............................
DESCRIPTION OF OPERATION 6......................
1 Power supply 7.........................................
2 2--stroke / 4--stroke 8....................................
3 Start / Stop 8...........................................
4 Current relay, Creep start / Normal start 9..................
5 Motor driving / braking 10..................................
6 Tachometer input 11......................................
7 Burn--back time 11.......................................
8 Wire feed speed 11.......................................
9 Gas valve 12............................................
10 Activation, contactor 12...................................
11 Processor 12............................................
TECHNICAL DATA 13..................................
MAINTENANCE 13....................................
SETTING THE WIRE FEED PRESSURE 14...............
CONTROL PANEL AND CONNECTIONS 15..............
ACCESSORIES 16.....................................
SPARE PARTS LIST 17.................................
NOTES 24............................................
READ THIS FIRST
Maintenance and repair work should b e 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 connection 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 connection diagram ar e listed in
the component description.
This manual contains details of all design changes that have been made up to and including
May 2002.
The MEK 2 is designed and tested in accordance with international and European
standard IEC/EN 60974--1 and EN 50199.
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.
Rights reserved to alter specifications without notice.