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About this Product
6021-21 Random Orbital Sander Pad Brake Retrofit Fixed Pulley
requires modification to existing pad brake and belt from Porter Cable 333, available online.
This pulley replaces one of the mounting features of the existing pad brake. After removing pad, remove lower housing (4 torx screws) and remove pad brake. Notice attachment tabs on back of "brake". With utility knife, cut out one tab, making a slightly larger rectangular hole in the pad, so the t in the fixed pulley fits through. Install original brake and fixed pulley into slots in sander housing. Re assemble housing. After installing both pulleys, install belt over pulleys. Cut off any remaining original brake fins for clearance. Reinstall sanding pad and check for proper operation. Belt should provide brake action while allowing the pad to rotate slowly when engaged with work piece.