Lincoln Electric 11521 service manual Perform the Output Contactor

Models: 11521

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F-5

TROUBLESHOOTING AND REPAIR

 

 

F-5

 

 

 

 

 

 

 

 

 

 

 

 

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

 

RECOMMENDED

 

 

(SYMPTOMS)

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

 

(continued from previous page)

3. Check the gun trigger leads.

 

 

 

 

 

 

 

Leads #324 to #325 should have

 

 

 

 

 

 

 

continuity (zero ohms) when the

 

 

 

 

 

 

 

gun trigger is activated. If not,

 

 

 

 

 

 

 

the gun trigger or cable may be

 

 

 

 

 

 

 

faulty. Check or replace.

 

 

 

 

 

 

 

4. Check to make sure the switch

 

 

 

 

 

 

 

on the Magnum 100SG Adapter

 

 

 

 

 

 

 

Panel is in the Magnum Push

 

 

 

 

 

 

 

Gun Position.

 

 

 

 

 

 

 

5. If a spool gum option kit is

 

 

 

 

 

 

 

installed, check to make sure it is

 

 

 

 

 

 

 

set to the “normal” position if

 

 

 

 

 

 

 

using the Power MIG® 215XT

 

 

 

 

 

 

 

built in wire feeder.

 

 

 

 

 

 

 

 

 

 

 

 

When the gun trigger is activated

1. Make sure the gun cable and

1.

Check

the

output

selector

and the wire feeds normally, but

work cables are connected prop-

 

switch for proper operation and

there is no open circuit voltage.

erly and in good condition.

 

good connections.

 

 

 

2. Make sure the output selector

2.

Perform the Output Contactor

 

 

switch is in a good condition posi-

 

Test.

 

 

 

 

 

tion and not between positions.

 

 

 

 

 

 

 

 

3. Perform

the

Output

Bridge

 

 

 

 

Rectifier Test.

 

 

 

 

4. Perform the Main Transformer

 

 

 

 

Test.

 

 

 

 

 

 

5. Check the heavy current carry-

 

 

 

 

ing leads between the output

 

 

 

 

selector switch, output contac-

 

 

 

 

tor, output bridge rectifier, and

 

 

 

 

the output terminals for loose or

 

 

 

 

faulty connections. See Wiring

 

 

 

 

Diagram.

 

 

 

 

 

 

 

 

 

 

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.

Power MIG® 215XT

Page 43
Image 43
Lincoln Electric 11521 service manual Perform the Output Contactor