Draper head with securing action for a height-adjustable reel

A harvester comprising:

• a draper head comprising:
• a frame extending substantially across a working width of the draper head;
• cutting elements arranged at a front side of the draper head and connected to the frame:
• conveying surfaces and conveying members configured to transport cut crop from the cutting elements to a discharge location of the draper head;
• a reel extending transversely to a working direction of the draper head across the working width of the draper head;
• reel support arms pivotably supported on the frame and supporting the reel;
• a hydraulic adjusting drive operatively connected to the reel support arms to pivot the reel support arms to carry out a height adjustment of the reel;
• a hydraulic circuit operatively connected to the hydraulic adjusting drive and comprising a hydraulic valve configured to lock the hydraulic circuit, wherein the hydraulic valve is an electrically controlled hydraulic valve connected to an electric circuit;
• an electronic control unit configured to control operations of the harvester and/or the draper head;
• a safety switch connected to the electric circuit, wherein the safety switch is a component separate from the electronic control unit and is arranged at the draper head or at a component of the harvester;
• wherein the safety switch, when actuated, separates the hydraulic valve from a current supply of the electric circuit to lock the hydraulic circuit.