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[Graham43]

My front drum brake is causing a problem. Rotated forward it binds - rotate backwards it runs free. The details of the brake are:- newish brake linings (has worked well with these linings), fixed pivot single leading shoe. The brake plate is a rigid casting, there is no provision for adjusting pivot. Brake drum is clean and free of dust. I have taken great care to tighten everything to avoid distorting the brake plate. It sometimes work well but now having had to remove it this problem started. Have tried tightening anchor bolt whilst holding brake on hard. The anchor bolt is not connected to the brake pivot. Any ideas please ?

[PeteF]

Check leading edge of the lining is not loose on the shoe. Had this once years ago.

[Davie Hall]

Have you checked that the brake cam is properly free. If you remove it from the bike then remove the brake shoes the cam should spin through 306 degrees with little or no resistance

[Graham43]

Progress. I have dismantled the brake and all was working well. I turned over the brake shoes and put them back in reverse of their former position and now all working a treat.