The easiest way to make adjustments on your Hunter rotor is to use a Hunter adjustment wrench.
There are two adjustments that can be made on your rotor, the arc and the radius. The arc adjustment is responsible for changing the rotational pattern the head is going to cover. The factory setting and minimum arc on a Hunter rotor is 40 degrees, the maximum is a full 360 degrees.
Before adjusting rotate the nozzle turret counterclockwise to the left stop, or as far to the left as the turret will rotate.
Next rotate the nozzle turret clockwise to the right stop or the furthest the turret will rotate.
This is the fixed side of the arc and all adjustments must be made with the turret in this position.
Your arc can be adjusted from 40 to 360 degrees.
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