If the auto return no longer works on your Technics SL-B2 SLB3 turntable it is usually because of the failure of this plastic gear. Over time the material shrinks and gets tighter onto the spindle until it cracks and fails. Most of these turntables are getting to the age now where this failure is inevitable. If your turntable auto return still works but is jerky it means it is already cracked. Fortunately it is an easy repair best done by taking the bottom of the turntable off just a few screws and loosening the retaining screw in the bearing holding the spindle 30 minutes to an hour maximum. See main description for more info.
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