1) install the stainless steel hinge, hinge should be the front lift. If hinge down the front, the roller as the fulcrum, can cause the wheel and rail load increase.
2) the location of the relative guide roller: (1) wheel and rail should not point contact, and shall be the line contact. If wheel askew, and guide into a single contact. For the balance of its, hinge and sliding door clearance should be adjusted. (2) of the wheel will never allow a single contact.
3) the clearance between the guide rail and sliding door stainless steel hinge for 0.5 1 mm.
4) guide bar and rod can't interfere.