Troubleshooting. Lincoln Electric AutoPro 155S

Troubleshooting. Lincoln Electric AutoPro 155S

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TROUBLESHOOTING

HOW TO USE TROUBLESHOOTING GUIDE E-1

WARNING

Service and Repair should only be performed by Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.

__________________________________________________________________________ This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions.

Simply follow the three-step procedure listed below.

Step 3. RECOMMENDED COURSE OF ACTION

This column provides a course of action for the Possible Cause, generally it states to contact your local Authorized Field Service Facility.

Step 1. LOCATE PROBLEM

exhibiting.

  (SYMPTOM).

Look under the column labeled “PROBLEM (SYMP TOMS)”. This column describes possible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the machine is If you do not understand or are unable to perform the Recommended Course of Action safely, contact your local Authorized Field Service Facility.

Step 2. POSSIBLE CAUSE.

The second column labeled “POSSIBLE CAUSE” lists the obvious external possibilities that may contribute to the machine symptom.

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.

AUTOPRO™ 155S

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TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual

PROBLEMS (SYMPTOMS)

Excessive spatter

POSSIBLE CAUSE WELDING PROBLEMS

1. Improper welding polarity.

RECOMMENDED COURSE OF ACTION

2. Long Arc Length.

3. High Current.

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1. Make sure the electrode holder is plugged into the positive “+” out put terminal.

2. Move the electrode closer into the weld joint.

3. Turn the output knob down.

Craters Inclusions Insufficient penetration Electrode Sticking Porosity Cracks 1. Fast movement of the electrode away from the work piece.

1. Poor cleanliness.

2. Poor distribution of the welding passes.

1. High travel speed.

1. Maintain a steady consistent arc length 1. Clean work piece with wire brush prior to welding.

2. Consult a welding guide for proper weld bead placement.

1. Travel at a slower speed.

2. Adjust welding output higher.

2. Welding current is too low.

1. Arc length is too short.

2. Welding current is too low.

1. Humidity in the electrode.

2. Long arc length.

1. Move the electrode further away from the weld joint.

2. Turn the output knob up.

1. Store welding electrodes in a warm dry place.

2. Move the electrode closer into the weld joint.

1. Weld current is set too high.

1. Turn the output knob down.

2. Dirty materials.

3. Hydrogen in the weld due to mois ture.

2. Clean work piece with wire brush prior to welding.

3. Store welding electrodes in a warm dry place.

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.

AUTOPRO™ 155S

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