Lincoln Electric IM520-B manual Stick Welding Problems

Models: IM520-B

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TROUBLESHOOTING

Troubleshooting Guide

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

 

 

 

STICK WELDING PROBLEMS

 

 

Stick electrode “Blasts Off” when

 

 

1.

Weld current is set too high

 

 

arc is struck.

 

 

 

for recommended electrode

 

 

 

 

 

 

size. Reduce preset current

 

 

 

 

 

 

adjustment.

 

 

 

 

 

 

 

 

 

Cannot adjust AC Wave Balance

 

 

1.

This is a normal condition.

 

 

when welding in the Stick Mode.

 

 

 

Wave balance keys are

 

 

 

 

 

 

automatically disabled in the

 

 

 

 

 

 

Stick Mode.

 

 

 

 

 

 

 

 

 

Machine welds at a very low output

 

 

1.

If welding in the Remote

 

 

regardless of the preset current

 

 

 

Control Mode, the remote

 

 

setting - arc is stable.

 

 

 

amptrol may be defective or

 

 

 

 

 

 

not installed properly.

 

 

 

 

 

2.

If the output is low when the

 

 

 

 

 

 

machine is in the Local

 

 

 

 

 

 

Control Mode, the problem

 

 

 

 

 

 

could be internal to the

 

 

 

 

 

 

machine.

 

 

 

 

 

 

 

 

 

Variable or sluggish welding arc

 

 

1.

Check work and electrode

 

 

when welding in the Stick Mode.

 

 

 

cables for loose or poor

 

 

 

 

 

 

connections.

 

 

 

 

 

2.

The weld cables may be too

 

 

 

 

 

 

small or too long to permit the

 

 

 

 

 

 

desired current to flow.

 

 

 

 

 

3.

The preset current adjustment

 

 

 

 

 

 

may be set too low.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECOMMENDED COURSE OF ACTION

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

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Lincoln Electric IM520-B manual Stick Welding Problems