got a FG50AT2-8 S/N 130402A

replaced master cylinder and wheel cylinders master was sticking, had one wheel cylinder seized. replacement went well but as putting on drums nicked seal lost gear oil in right drum that got everything messy, replaced seals and cleaned up shoes ground down with flap disc and scuffed up drums, adjusted out can't move adjuster any more out as it's at max and machine not stopping with power at all. she'll drag through the right wheel till it sticks and the left wheel will be slowly rolling, any suggestions?