Install Sector Control correctly Mounting a Sector Control on a Irrigation Trolley.  What do I have to do? Remove the cannon. Remove the cannon stops. Place the seals between the flanges. Align the sector control so that the blue motor box faces the hose reel. Fasten the supplied screws. Mount the gun with the supplied gasket directly above the sector control. Now mount the provided stops which are fitting for your gun. Screw the short stop always to the  upper position from TOP , and the long stop to the  lower position from BOTTOM . Switch on the sector control on the black motor box. Make sure that the button is pushed in. Alignment of the Stops The tip of the triangular markings on the stops must  ALWAYS point towards the gun lever. Standard Setup Reverse Setup