Removal And Replacement Procedures; Control Box Removal And Replacement Procedure - Lincoln Electric LN-25x Service Manual

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LINCOLN ELECTRIC

Removal And Replacement Procedures

Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized

repairs performed on this equipment may result in danger to the technician or 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. 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 1-888-935-3877.

TEST DESCRIPTION

This procedure will aid the technician in the removal and replacement of the Control Box Assembly from

the Case Assembly.

MATERIALS NEEDED

3/8" Nutdriver

1/2" Wrench

7/16" Wrench

Wiring Diagram

REMOVAL PROCEDURE

1. Remove the input power to the LN-25x wire feeder.

2. Disconnect the gun and remove wire spool, if applicable.

3. Using a 3/8" nutdriver and 1/2" nutdriver, remove the eight case cover screws (two on top, four on

the left side and two on the bottom of unit). See Figure F.17 and F.18.

4. Using a 7/16" wrench, remove the two screws and associated washers securing the case handle to

the machine. See Figure F.19.

NOTE: There will only be one screw and associated washer if the Wire Drive Assembly And Control

Box Cover Removal Procedure has been performed.

5. Loosen the cord grip connector, located on the rear of the unit. See Figure F.20.

Slide the control box assembly out of the case assembly.

REPLACEMENT PROCEDURE

1. Slide the control box assembly into the case assembly.

2. Tighten the cord grip connector, located on the rear of the unit.

3. Using a 7/16" wrench, attach the two screws and associated washers securing the case handle to

the machine.

4. Using a 3/8" nutdriver and 1/2" nutdriver, attach the eight case cover screws (two on top, four on

the left side and two on the bottom of unit).

5. Perform the Retest After Repair Procedure.

LN-25x™ Service Manual

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