Space saving mechanism for installation of swing door operator

A system for attaching a component to a back plate, comprising:

• two clamp members forming a clamp, the clamp members being connected by a fastener configured to apply a force at least in a first direction which brings the clamp members closer together, wherein the fastener comprises a head portion accessible from outside of the clamp to facilitate actuation of the fastener to apply the force, and wherein each clamp member comprises an inclined surface and a retaining lip;
• a resilient member configured to provide a biasing force in a second direction pushing the clamp members and retaining lips away from each other,
• at least one retaining shoulder arranged on the component;
• and
• at least one retaining surface and a front face arranged on the back plate, wherein the at least one retaining surface faces toward the front face and wherein the at least one retaining surface defines at least one groove,
• wherein the retaining lip is positioned in the groove between the front face and the at least one retaining surface,
• wherein the biasing force in the second direction moves clamp members apart and moves the retaining lip away from one another and into engagement with the groove to loosely hold the clamp to the back plate,
• wherein the inclined surface cooperates with the at least one retaining shoulder such that movement of the clamp members towards each other moves the inclined surface of at least one of the clamp members in the first direction opposite from the second direction into contact with and along the respective retaining shoulder, and
• wherein the motion of the respective inclined surface along the at least one retaining shoulder moves the retaining lip toward the retaining surface of the back plate securing the component to the back plate.