LIT-060 Hunter 2004-2005 Product Catalog - Ewing Irrigation

Installation Guide(Continued)PGJ, PGP ® and I-20 Ultra Rotary Sprinklers Nozzle Installation1. Insert the plastic key end of the Hunter wrench intothe lifting socket of the sprinkler and turn 90°. Pull theriser up to gain access to the nozzle socket.2. Using the hex key of the Hunter wrench, turn theradius adjustment screw counterclockwise to be sureit is not blocking the nozzle socket opening. If a nozzleis already installed, it can be removed by backing outthe adjustment screw and turning on the water, or bypulling outward on the nozzle “ears” with a pair ofneedle-nosed pliers.3. Slip the desired nozzle into the nozzle socket. Notethat the socket is angled up 25˚, and that the I-20Ultra nozzle has a fl at top. The “ears” should beadjusted so that the nozzle range screw threadsdirectly down between them. Then tighten the nozzlerange screw. The raised bump with an arrow on therubber cover will always indicate the location of thenozzle and direction of water fl ow when the sprinkleris retracted.4. Turn nozzle-retainer/radius-adjustment screwcounterclockwise to increase radius, clockwise todecrease radius.5. If larger radius is desired, install larger nozzle (thiswill also increase precipitation rate). If smallerradius is desired, install smaller nozzle (this will alsodecrease precipitation rate).I-25 Plus, I-40 Group and I-90 Rotary Sprinklers Nozzle InstallationWater Flow1. Insert the plastic key end of the Hunter wrench intothe lifting socket of the sprinkler and turn 90°. Pull theriser up to gain access to the nozzle socket.2. Using the Hunter wrench, loosen the nozzle-retainer/range-adjustment screw. If a nozzle is already installedin the sprinkler, it may be removed by briefl y turningon the water or by pulling outward on the nozzlewith a pair of needle-nosed pliers. Discard nozzle ifremoved with pliers.3. Slip the desired new nozzle into the nozzle socket. Notethat the socket is angled up 25°. Push all the way in.Tighten the nozzle-retainer/range-adjustment screw.4. Turn nozzle-retainer/radius-adjustment screwcounterclockwise to increase radius, clockwise todecrease radius.5. If larger radius is desired, install larger nozzle (thiswill also increase precipitation rate). If smallerradius is desired, install smaller nozzle (this will alsodecrease precipitation rate).I-60 Nozzle InstallationTools needed: T-handle tool part number 319100,riser service tool part number 279100, Hunter wrenchor 3 ⁄32" Allen.PreparationUnscrew the body cap from the body of the sprinkler.Remove the body cap. Using the key end of the Hunterwrench, pull up on the riser assembly to remove it fromthe body. Place the riser assembly’s lower end into thebase of riser service tool part number 279100. Pressthe tool’s metal bar down over the riser spring. Continuecompressing the spring until the bar enters the slots inthe tool’s base. Rotate the bar to engage with the tool’sbase, thereby holding the spring under tension.Nozzle Removal and ReplacementI-60-36S: The nozzle is retained in the nozzle housing bya setscrew. To remove the nozzle, back out the setscrewso that the nozzle will clear. Rotate the nozzle housing toplace the diffuser yoke at its lowest position in order toprovide clearance. Grasp a nozzle tab with pliers and pullto remove.I-60-ADS: The nozzle is retained in the nozzle housingby a setscrew. To remove the nozzle, fi rst slide the diffuserpins to the extreme left, from the viewer’s perspective,past the black stop post.All Models: Place the replacement nozzle in the housing.Press fi rmly to fully seat the nozzle so that it willclear the retaining setscrew. This can be accomplishedwith the T-handle tool’s open end. Run the setscrewdown to retain the nozzle, taking care not to run it downso far as to interfere with the nozzle stream. For I-60-ADSmodels, ensure the diffuser pins are placed back in linewith the nozzle.Visually check for proper assembly of nozzles and setscrews.Reverse the preparation procedure to reassemblethe unit.PGJ, PGP ® , I-20 Ultra, I-25 Plus, I-40 Group, I-60 and I-90 Rotary Sprinklers Pop-up InstallationPGJ, PGP, I-20 Ultra, I-25 Plus, I-40 Group, I-60 pop-upand I-90 sprinklers should be installed at grade asshown here. Manually rotate sprinkler nozzle from stopto stop to determine sprinkler orientation.112