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F-35

F-35

TROUBLESHOOTING & REPAIR

HALL EFFECT MODULE TEST AND ALIGNMENT (continued)

FIGURE F.7 – LEADS #525, #510, #555 ON CONTROL PC BOARD

LEAD LEAD LEAD

525 510 555

HALL EFFECT MODULE FEEDBACK

TEST PROCEDURE

1.

Remove the input power to the LN-9 GMA

4.

Lift the left side cover.

 

wire feeder.

5.

Locate the hall effect leads #510, #525 and

 

 

2.

Remove any electrode wire or disengage

 

#555 on the control PC board. See Figure

 

the drive rolls.

 

F.7.

3.Using the phillips head screwdriver, remove the screws from the left side cover assembly.

LN-9 GMA Wire Feeder

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Lincoln Electric SVM138-A service manual Hall Effect Module Test and Alignment, Hall Effect Module Feedback Test Procedure