Custom Automatic Underground Lawn Sprinkler Systems
1011 Woodfield Road, West Hempstead, NY 11552
(516) 255-9595 FAX-(516) 255-9300
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How To Adjust Your Hunter Rotating Sprinklers:

 

PGP Install
PGP, PGS, PGH INSTALLATION

The PGP Pop-up sprinkler should be installed at finish grade as shown.


ARC ADJUSTMENTS

Adjustable heads are preset to approximately 180°. Sprinklers may be adjusted with water on or off. It is recommended that initial adjustment be made before installation.

Fig 11. Using the palm of your hand, rotate the nozzle turret counterclockwise to the left stop to complete any interrupted rotation cycle (Fig. 1).

2. Rotate the nozzle turret clockwise to the right stop. This is the fixed side of the arc. The nozzle turret must be held in this position for all arc adjustments.

To Increase Arc:

1. Insert the key end of the Hunter wrench into the adjustment socket (Figs. 2 & 3).Fig 2

2. While holding the nozzle turret at the right stop, turn the wrench clockwise. Each full turn of the wrench increases the arc 90°.

3. Adjust to any arc between 40° and 360°.

4. Wrench will stop turning or there will be a ratcheting noise, when the maximum arc (360°) is reached.

To Decrease Arc:

1. Insert the key end of the Hunter wrench into the adjustment socket (Figs. 2 & 3).Fig 3

2. While holding the nozzle turret at the right stop, turn the wrench counterclockwise. Each full turn of the wrench decreases the arc 90°.

3. Adjust to any arc between 40° and 360°.

4. Wrench will stop turning, or there will be a ratcheting noise, when the minimum arc (40°) is reached.


RADIUS ADJUSTMENT

Insert the hex end of the Hunter wrench into the nozzle-retainer/range-adjustment screw (Figs. 2 & 3). Turn the screw clockwise (into the stream of water) to decrease the radius, or counterclockwise to increase the radius.


PRECIPITATION RATE ADJUSTMENT

For excessively wet or dry areas, the precipitation rate can be adjusted. Simply replace the existing nozzle with a larger one to increase, or a smaller one to decrease, the rate of precipitation.

Note: It is not necessary to disassemble the sprinkler to make adjustments.


NOZZLE INSTALLATIONFig 4

1. Insert the key end of the Hunter wrench into the lifting socket of the sprinkler. Pull the riser 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 installed in the sprinkler, it can be removed by briefly turning on the water, or by pulling on one of the nozzle "ears" with needle-nose pliers.

3. Slip the desired nozzle into the nozzle socket. Note that the socket is angled up 25°. Also note that the "ears" should be located at the top (Fig. 4). Tighten the nozzle-retainer/range-adjustment screw.

 


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