Insert the plastic key end of the Hunter wrench into the adjustment socket on top of the sprinkler. While holding the nozzle turret at the right stop, turn the wrench clockwise. Wrench will stop turning when adjusted to the maximum arc (360°). Do not go past this stop.Click to see full answer. Also, how do I adjust my sprinkler pressure?Adjust the master valve of your sprinkler system by turning the flow control clockwise until the stream of water from the nozzle begins to drop. This lowers the water pressure. Turn the flow master valve flow control slowly until the spray pattern reaches its full radius.Furthermore, what is the difference between red and blue Hunter nozzles? Both the Red and Blue nozzles will fit the PGP-Adj rotor head. The blue ones have different designations in GPM rather than just a size #. There are also Grey nozzles for lower angle patterns. In this way, why is my hunter sprinkler head not rotating? When in operation, water turns a small turbine in the base of the sprinkler, which drives a series of gears that cause the head to rotate. The Hunter gear drive mechanism is sealed from dirt and debris. Generally, if cleaning the filter does not solve non-rotation then the sprinkler must be replaced.How do you fix a sprinkler head that won’t rotate? How to Do It Disassemble the sprinkler head. Take off the filter at the bottom of the head. Rinse the filter in a bucket filled with clean water to wash out debris. If this doesn’t work you’ll need to have the sprinkler head replaced. If it does work, make sure the head is properly adjusted when you re-install it.
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