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F-11

 

 

 

 

F-11

TROUBLESHOOTING & REPAIR

 

TROUBLESHOOTING GUIDE

 

 

 

 

Observe Safety Guidelines

 

 

 

 

detailed in the beginning of this manual.

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

WELDING PROBLEMS

 

 

When welding in the Stick Mode,

1.

Make sure the machine settings

1. Check the CC Slope Switch

the current changes with arc

 

are correct for the process

(S2) and the associated lead

length.

 

being used. When stick weld-

connections.

 

 

ing, the CC Slope Switch (S2)

2. Check all the plug connections

 

 

should be

in the Stick/Gouge

 

 

to the Weld Control Board for

 

 

position.

 

 

 

 

 

 

loose or faulty connections.

 

 

 

 

 

 

2. Check the welding cables for

See the Wiring Diagram

 

 

loose or faulty connections.

3. The Weld Control Board may be

 

 

 

 

 

 

 

 

 

 

faulty. Replace.

 

 

 

 

 

When using “fast freeze” type elec-

1.

Make sure the machine settings

1. Check the CC Slope Switch

trodes such as E6010 or E7010,

 

are correct for the process

(S2) and the associated lead

the welding performance is poor.

 

being used. When stick welding

connections.

 

 

with “fast

freeze” type

elec-

2. Check all the plug connections

 

 

trodes, the

CC Slope

Switch

 

 

to the Weld Control Board for

 

 

(S2) should be in the Pipe posi-

 

 

loose or faulty connections.

 

 

tion.

 

 

 

 

 

 

See the Wiring Diagram.

 

 

 

 

 

 

2.

Check the

welding cables for

3. The Weld Control Board may be

 

 

loose or faulty connections.

 

 

faulty. Replace.

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-800-833-9353.

MULTI-WELD 350

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Lincoln Electric SVM151-A service manual Troubleshooting & Repair