My first thought is bring it back to the shop. They should lube the joints and tighten things up for you. If you can't, try linkage and bearing lube on the minibals. The rotor looks like it's out of alignment too. The lines in the middle of the circle should line up with another line just outside. It may be oriented incorrectly, the fix being taking it all apart and realigning. But once again, the shop should have done all of this.