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Motor Brake Locknut   SB 201.1

Service Bulletin: SB 201.1

Subject: Motor Brake Locknut


Current motor brakes, using a Lock-Washer and Lock-Nut combination on the motor shaft, can occasionally become loose.

To prevent future issues, Paper Machinery Corporation recommends upgrading to Locking Nut NT-10766 (for PMC-1002) and Locking Nut NT-10769 (for PMC-1001).


In addition, the drive hub (PT-13673) should be reworked to add three set screws for a more secure fit. Use THIS SKETCH for set screw size and locations.