Generator Frame Removal And Replacement Procedure - Lincoln Electric Classic 300 MP Service Manual

LINCOLN ELECTRIC

GENERATOR FRAME REMOVAL AND REPLACEMENT PROCEDURE

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 Generator Frame.
MATERIALS NEEDED
3/4" Wrench
Rope Sling
Wood Or Steel Blocking
9/16" Wrench
REMOVAL PROCEDURE
1. Turn off the engine on the Classic 300 MP machine.
2. Perform the Case Cover Removal Procedure.
3. Perform the Exciter Stator Removal Procedure.
4. Using a 3/4" wrench, remove the frame mounting bolts, nuts and spacers from the feet of the
generator frame. See Figure F.71.
5. Using a rope sling around the generator frame, carefully lift the frame and engine assembly a small
distance. Place wood or steel block under the engine adapter plate.
6. Using a 9/16" wrench, remove the five bolts securing the generator frame to the engine. See Figure
F.71.
7. The generator frame can now be removed and replaced.
REPLACEMENT PROCEDURE
1. Using a rope sling, support the generator frame. Carefully mount the generator frame to the engine
and armature assembly. Before removing the rope sling, be sure to support the generator frame
with the wood or steel block under the engine adapter plate.
2. Using a 9/16" wrench, attach the five bolts securing the generator frame to the engine.
3. Using a 3/4" wrench, attach the frame mounting bolts, nuts and spacers securing the feet of the
generator frame to the machine base
4. Perform the Exciter Stator Replacement Procedure.
5. Perform the Case Cover Replacement
6. Perform the Retest After Repair Procedure.
assembly.
Procedure.
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