Instructions - These are very simple to take apart and put back together. There is a few videos on YouTube (search " repair Bowflex dumbbells") that show how to do this. Just be careful not to lose the springs or bearings when taking apart.
USED SERIES 2 ONLY Bowflex SelectTech 552 Dumbbell Replacement Handle Parts Disc
USED SERIES 2 ONLY Bowflex SelectTech 552 Dumbbells Replacement Plate Weight
Bowflex 1090 Replacement Part-Weight Dial
Bowflex 1090 SelectTech Dumbbell Replacement Weight Plate #2 (2nd smallest 5lb)
DAMAGED - Bowflex 1090 Dumbbell Replacement #5 (largest) Weight Plate (15lb)
DAMAGED - Bowflex 1090 Dumbbell Replacement #4 (sec largest) Weight Plate (10lb)