Lynnmor wrote:
Grease did not cause the abnormal wear on the drums. I believe that you are talking about where the magnets meet the armature face and, if that is the case, your new magnets will be damaged by the old drums.
What happens with new shoes or greased brake lining, the operator turns up the controller and makes the magnet work too hard just to get some braking. It's all downhill from there.
Appreciate the reply. Actually, the armature face on each drum appear to be in good to excellent condition---flat with no obvious scoring that I can see. It's possible the grease may have helped in that regard--lol!
However, the part of the drum that contacts the brake shoes is scored quite a bit. I suppose wear-is-wear. Would be nice if there was something to look for that differentiates "normal" wear from wear aggravated by grease contamination.