Lincoln Electric SVM197-A service manual Rotor Removal Procedure

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F-38 TROUBLESHOOTING AND REPAIR F-38

STATOR/ROTOR

REMOVAL AND REPLACEMENT PROCEDURE (continued)

FIGURE F.13 - ROTOR WITH STATOR REMOVED

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ROTOR REMOVAL

PROCEDURE

1.To remove the rotor, double check that the spark plug wire is discon- nected. You will be turning the rotor during this procedure, and this could accidentally cause engine kickback.

2.With an impact wrench, remove the rotor thru-bolt. See Figure F.13. If an impact wrench is not available, use the 1/2” box wrench. Hold the rotor with one hand and shock the wrench with the mallet to loosen the thru- bolt. The thru-bolt has a star wash- er and lock washer, beveled to con- form to the rotor shaft. Pull out the thru-bolt.

3.Install the long thru-bolt supplied with Lincoln Electric Rotor Removal Kit S20925. The slot head must face out. Screw in the bolt with the slot head screw driver until the bolt bot- toms out on the engine crankshaft, about 3/4”.

4.Turning it counterclockwise, screw in the reverse thread bolt from the kit into the rotor shaft until it bottoms out on the thru-bolt.

5.With an impact wrench, tighten the reverse thread bolt until the rotor

pops off the engine crankshaft. If an impact wrench is not available, use the 1/2” box wrench. Hold the rotor with one hand and shock the wrench with the mallet until the rotor pops off the engine crankshaft.

6.Slide the rotor and blower (press-fitted to the rotor) the rest of the way off the crankshaft.

REASSEMBLY PROCEDURE

1.Lubricate the tapered engine crank- shaft. Slide the rotor onto the shaft.

2.Coat the rotor thru-bolt threads with Lincoln E177-R retaining compound (Locktite( 277). Place the beveled lock washers onto the thru-bolt and insert it into the rotor shaft. Hold the rotor and tighten the thru-bolt to 22 - 25 ft lbs.

3.Carefully install the stator, with the leads at the 1 o’ clock position.

IMPROPER HANDLING OF THE STATOR CAN RESULT IN SHORTED WINDINGS AND/OR LOST OUTPUT.

4.Install the end bracket. Slide it on and install the two top thru-bolts loosely to hold the end bracket for the next step.

5.Install the end bracket support.

POWERARC® 5500