I-60 Rotary Sprinklers Installation and Adjustment Instructions

I-60-36S Riser Assembly	I-60-ADS Riser Assembly

Nozzle Installation

Tools needed: T-handle tool part number 319100, riser service tool part number 279100, Hunter wrench or 3/32" Allen.

Preparation

Unscrew the body cap from the body of the sprinkler. Remove the body cap. Using the key end of the Hunter wrench, pull up on the riser assembly to remove it from the body.

Remove the filter screen. Place the riser assembly’s lower end into the base of riser service tool part number 279100. Press the tool’s metal bar down over the riser spring. Continue compressing the spring until the bar enters the slots in the tool’s base. Rotate the bar to engage with the tool’s base, thereby holding the spring under tension.

Nozzle Removal and Replacement

I-60-36S: The nozzle is retained in the nozzle housing by a setscrew. To remove the nozzle, back out the setscrew so that the nozzle will clear. Rotate the nozzle housing to place the diffuser yoke at its lowest position in order to provide clearance. Grasp a nozzle tab with pliers and pull to remove.

I-60-ADS: The nozzle is retained in the nozzle housing by a setscrew. To remove the nozzle, first slide the diffuser pins to the extreme left, from the viewer’s perspective, past the black stop post.

All Models: Place the replacement nozzle in the housing. Press firmly to fully seat the nozzle so that it will clear the retaining setscrew. This can be accomplished with the T-handle tool’s open end. Run the setscrew down to retain the nozzle, taking care not to run it down so far as to interfere with the nozzle stream. For I-60-ADS models, ensure the diffuser pins are placed back in line with the nozzle.

Visually check for proper assembly of nozzles and setscrews. Reverse the preparation procedure to reassemble the unit.

Arc Adjustment

All I-60-ADS adjustable arc sprinklers are preset at approximately 180º. Sprinklers may be adjusted with water on or off. It is recommended that initial adjustment be made before installation.

1. Using the palm of your hand, rotate the nozzle turret counterclockwise to the left stop to complete any interrupted rotation cycle (Fig. 2).
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 (Fig. 1 and Fig. 3).
2. While holding the nozzle turret at the right stop, turn the wrench clockwise. Each 360º turn of the wrench increases the arc 45º.
3. Adjust to any arc between 40º–360º.
4. Wrench will stop turning, or there will be a ratcheting noise, when the maximum arc (360º) is reached.

To Decrease Arc:

1. Insert the key end of the Hunter wrench into the adjustment socket (Fig. 1 and Fig. 3).
2. While holding the nozzle turret at the right stop, turn the wrench counterclockwise. Each 360º turn of the wrench decreases the arc 45º.
3. Adjust to any arc between 40º–360º.
4. Wrench will stop turning, or there will be a ratcheting noise, when the minimum arc (40º) is reached.