Turn on the sprinkler system and locate the head you want to adjust
Check the model type of the Hunter sprinkler head
Use a Hunter adjustment key or a flathead screwdriver
Rotate the nozzle to set the spray direction
Turn the radius screw clockwise to reduce spray distance
Turn the radius screw counterclockwise to increase spray distance
Adjust the arc by inserting the key into the arc adjustment slot
Turn the arc adjustment screw clockwise to decrease the arc
Turn the arc adjustment screw counterclockwise to increase the arc
Make small adjustments and test the spray pattern
Ensure the head pops up and retracts properly
Clean any dirt or debris from the nozzle if needed
Repeat the adjustments for each sprinkler head as needed