Lincoln Electric SVM103-C service manual Rotor Removal Procedure

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F-33 TROUBLESHOOTING & REPAIR F-33

STATOR/ROTOR REMOVAL AND REPLACEMENT (continued)

FIGURE F.11 - ROTOR WITH STATOR REMOVED

ROTOR

THRU-BOLT

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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.11. 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 washer and lock washer, beveled to conform 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 bottoms out on the engine crank- shaft, about 3/4”.

4.Turning it counterclockwise, screw in the reverse thread bolt from the kit into the rotor shaft until it bot- toms 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.

POWER-ARC 4000