Table Of Contents; Read This First - ESAB MEK 4 Service Manual

LIST OF CONTENTS
READ THIS FIRST
COMPONENT DESCRIPTION
WIRING DIAGRAM
Valid for serial no. 431--xxx--xxxx
WIRING DIAGRAM
Valid for serial no. 514--xxx--xxxx to 826--xxx--xxxx
DESCRIPTION OF OPERATION
Design changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Power supply
2 Activation, contactor
3 Crater filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Voltage adjustment
5 Gas valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 2--stroke / 4--stroke
7 Burn--back time
8 Wire feed speed
9 Creep start / Normal start
10 Motor driving / braking
11 Tachometer input
12 Current relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 Start / Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 Remote control input
16 Digital display
TECHNICAL DATA
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SETTING THE WIRE FEED PRESSURE
CONTROL PANEL AND CONNECTIONS
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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
February 2003.
Rights reserved to alter specifications without notice.
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