Installation & Arc Adjustment - Hunter I-60 Series Product Information

INSTALLATION & ARC ADJUSTMENT
I-60-36S Riser Assembly
Nozzle
Retainer Screw
NOZZLE INSTALLATION
Tools needed: T-handle tool p/n 319100, riser service tool p/n 279100, Hunter wrench or
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 p/n 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 180°. 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
360° turn of the wrench increases the arc 45°.
3. Adjust to any arc between 40°–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 (Fig. 1
and Fig. 3).
2. While holding the nozzle turret at the right stop, turn the wrench counterclockwise.
Each 360° turn of the wrench decreases the arc 45°.
3. Adjust to any arc between 40°–360°.
4. Wrench will stop turning, or there will be a ratcheting noise, when the minimum
arc (40°) is reached.
I-60-ADS Riser Assembly
Nozzle
Retainer Screw
Pin Recess for
Diffuser Yoke
Nozzle Removal
Filter Screen
Diffuser Pins
Filter Screen
3
/ " Allen.
32
Flow
Lift Up
Direction
Socket to
Arrow
Service
Riser
®
I-60 ADS
Arc Adjustment
Socket Fig. 1
Fig. 2
Fig. 3
11