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How to Adjust a Hunter PGP
How to Adjust a Hunter PGP. Hunter PGP rotary sprinkler heads have adjustable arc and radius settings. The arc is preset at the factory to 180 degrees. The arc can be adjusted to between 40 and a complete 360 degrees. The radius is preset at the factory to the highest setting. Radius settings can be decreased up to 25 percent of the maximum...
Hunter PGP rotary sprinkler heads have adjustable arc and radius settings. The arc is preset at the factory to 180 degrees. The arc can be adjusted to between 40 and a complete 360 degrees. The radius is preset at the factory to the highest setting. Radius settings can be decreased up to 25 percent of the maximum distance.
Things You'll Need
Hunter sprinkler adjustment wrench
Arc Adjustment
Insert the plastic key end of the Hunter adjustment wrench into the arc adjustment socket. This socket is located just above the beginning of the "Hunter" logo on the top of the sprinkler head.
Grasp the nozzle turret. Turn it all the way to the right stop point. Hold the turret in this position while adjusting.
Turn the wrench clockwise to increase the arc.
Turn the wrench counter-clockwise to decrease the arc.
Radius Adjustment
Insert the steel hex tip of the Hunter adjustment wrench into the radius adjustment socket. Use a small, thin flat-blade screwdriver if the Hunter adjustment wrench is not available. This socket is located above the end of the "Hunter" logo on the top of the sprinkler head.
Turn the wrench counter-clockwise to increase the radius.
Turn the wrench clockwise to decrease the radius. Be careful not to turn the radius adjustment screw more than five full turns clockwise at risk of causing the screw to disconnect from the sprinkler head.
