The easiest way to make adjustments on your Hunter rotor is to use a Hunter adjustment wrench . This tool can be purchased from your local distributor. There are two adjustments that can be made on your rotor, the arc and the radius . The arc adjustment …

APPLICATION: For use in sprinkler heads where low head drainage is a problem. Unthread the body cap and remove the internal assembly from the sprinkler body. Turn the internal assembly upside down to access the opening at the bottom of the riser. Insert …

Hunter rotary sprinklers operate on a “gear drive” system. 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 …

Rotary sprinklers require a certain amount of pressure and flow to operate properly. If the rotor does not receive the pressure it needs to pop up a leaky head will result. Here are some things to look for when a rotor doesn't pop up properly: Problem:   …

It's a combination drain hole and flush hole . It's a drain hole because we need to drain the water from below the nozzle turret so it doesn't push up on the nozzle turret in freezing climates. It’s a flush hole because when the head retracts, water and …

Replacement Guide: Spray Sprinklers and PGJ Rotary Sprinklers Receive Hunter quality and Hunter performance with the right substitute for your non-Hunter sprinklers. … Residential Rotors - Replacement Guide: PGJ …

Residential Rotors - Rotor Nozzle Installation Procedure …

Installing a nozzle on a rotor is relatively easy. The procedure is the same for the PGJ, SRM, PGP-ADJ, PGP Ultra and I-20 rotors.  This video will teach you how to intall a nozzle for any Hunter rotors.   … Installing a Nozzle on a Hunter …

 If your spray bodies are leaking water after the system (valve) is shut off, and the flow of water reduces over time, your heads are experiencing low head drainage. Low head drainage is where the lowest heads on the line weep the water in the pipe after …

Insert the plastic key end of the Hunter wrench into the lifting socket of the sprinkler and turn 90°. Pull the riser up to gain access to the nozzle socket. Radius Reduction Screw Pull-up Socket Plus+ Minus- Arc Adjustment … For correct nozzle selection, …

Precipitation rate is the speed at which water is being applied to a specific area. If you have excessively wet or dry areas, you can change the nozzle in the sprinkler to increase or decrease the precipitation rate. For dry areas, install a larger …

If the right side of the arc is not properly aligned, the results may be a wet walkway or a dry turf area. The right side arc can easily be realigned.  NOTE:  Prior to making the right side adjustment, make sure the top turret is reset. Rotate the turret …

The easiest of the rotor pressure gauges to use, the  Rotor Pitot Gauge  (P/N 280100), has a tube placed directly in front of the primary nozzle stream for an accurate working pressure (dynamic) reading. This gauge will work on all Hunter rotor sprinklers …

The most common reason for a sprinkler to stop rotating is the accumulation of debris in the filter. This video will teach you how to clean the filter on your rotors. … Cleaning a Filter on a Hunter …

With a rotor tool, it's easy to adjust the left stop, but ever wonder how to adjust the right stop after install? Hunter Technical Support will show you two ways to adjust your Rotor Right Stop. This technique works for all rotors inculding Hunter's …

Adjusting the arc and radius of a rotor is an easy task. Most residential rotors are adjusted the same way. There are two adjustments that can be made on rotors, arc and radius. Arc: The degrees of coverage of a sprinkler from one side of pattern to the …

One of the most common reasons for a sprinkler to start leaking between the pop-up riser assembly and the body cap while it is in operation is because the riser seal is worn or there is debris between the seal and the riser … Replacing a Hunter Rotor …

The  Hunter Adjustment Wrench  consists of a 3/32 Allen key, two convenient finger loops for gripping, and an opposite side arc adjustment key for all your Hunter rotor adjustments. The Hunter wrench can be purchased from your local distributor. You can …