The Council may remove the City Manager by four concurring votes of its members. At least thirty days before such removal shall become effective, the Council shall by a majority vote of its members adopt a preliminary resolution stating the reasons for his removal. The Council may suspend the City Manager from duty by such resolution. Within one week after receiving notice of such preliminary resolution, the City Manager may request a public hearing which shall be held within one week after such request. Within one week after such public hearing, if one is requested, and after full consideration, the Council by a majority vote of its members shall announce its final decision.