Troubleshooting & repair, How to use troubleshooting guide, Warning caution – Lincoln Electric V155-S User Manual

Page 34

Advertising
background image

TROUBLESHOOTING & REPAIR

F-2

F-2

INVERTEC® V155-S

Retur

n

to

Section

TOC

Retur

n

to

Section

TOC

Retur

n

to

Section

TOC

Retur

n

to

Section

TOC

Retur

n

to

Master

TOC

Retur

n

to

Master

TOC

Retur

n

to

Master

TOC

Retur

n

to

Master

TOC

This Troubleshooting Guide is provided to

help you locate and repair possible machine

malfunctions. Simply follow the three-step

procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM).

Look under the column labeled “PROBLEM

(SYMPTOMS)”. This column describes pos-

sible symptoms that the machine may exhib-

it. Find the listing that best describes the

symptom that the machine is exhibiting.

Symptoms are grouped into the following

categories: output problems, function prob-

lems, wire feeding problems, and welding

problems.

Step 2. PERFORM EXTERNAL TESTS.

The second column labeled “POSSIBLE

AREAS OF MISADJUSTMENT(S)” lists the

obvious external possibilities that may con-

tribute to the machine symptom. Perform

these tests/checks in the order listed. In

general, these tests can be conducted with-

out removing the case wrap-around cover.

Step 3. RECOMMENDED
COURSE OF ACTION

The last column labeled “Recommended

Course of Action” lists the most likely com-

ponents that may have failed in your

machine. It also specifies the appropriate

test procedure to verify that the subject com-

ponent is either good or bad. If there are a

number of possible components, check the

components in the order listed to eliminate

one possibility at a time until you locate the

cause of your problem.

All of the referenced test procedures

referred to in the Troubleshooting Guide are

described in detail at the end of this chapter.

Refer to the Troubleshooting and Repair

Table of Contents to locate each specific

Test Procedure. All of the specified test

points, components, terminal strips, etc. can

be found on the referenced electrical wiring

diagrams and schematics. Refer to the

Electrical Diagrams Section Table of

Contents to locate the appropriate diagram.

HOW TO USE TROUBLESHOOTING GUIDE

Service and Repair should only be performed by Lincoln Electric 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.

---------------------------------------------------------------------------------------------------------------------------

WARNING

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the

tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting

assistance before you proceed. Call 1-888-935-3877.

-----------------------------------------------------------------------------------------------------------------------------------

Advertising