How To Use Troubleshooting Guide - Lincoln Electric VANTAGE 400 Service Manual

F-2

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.
---------------------------------------------------------------------------------------------------------------------------
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
possible symptoms that the machine
may exhibit. Find the listing that best
describes the symptom that the machine
is exhibiting. Symptoms are grouped into
the following categories: output problems,
function problems, welding problems, engine
problems and output problems.
Step 2. PERFORM EXTERNAL TESTS.
The second column labeled "POSSIBLE
AREAS OF MISADJUSTMENT(S)" lists
the obvious external possibilities that may
contribute to the machine symptom. Perform
these tests/checks in the order listed. In
general, these tests can be conducted
without removing the case wrap-around
cover.
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.
-----------------------------------------------------------------------------------------------------------------------------------
TROUBLESHOOTING & REPAIR
WARNING
CAUTION
VANTAGE® 400
Step 3. RECOMMENDED COURSE OF ACTION
The last column labeled "Recommended
Course of Action" lists the most likely
components that may have failed in your
machine. It also specifies the appropriate
test procedure to verify that the subject
component 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.
F-2