Hunter INSTITUTIONAL SERIES I-90 User manual

I-90-ADV & 36V NOZZLE INSTALLATION
Caution! The riser assembly is under spring tension. Wear
eye protection and follow proper procedures when servicing
this product.
Tools needed: Phillips-head screwdriver and needle-nose pliers
Preparation
Unscrew the body cap from the body and withdraw the riser.
Compress the riser spring and seal assembly by pressing downward
to expose the nozzle. Hold compressed assembly in this position
rmly with one hand while servicing with the other hand.
NOZZLE REMOVAL AND REPLACEMENT
Remove the logo cap, which is retained by a central Phillips screw.
The nozzle is retained in the nozzle housing by a setscrew. To remove
the nozzle, back out the setscrew using the hex key on the Hunter
wrench so that the nozzle will clear. Grasp the nozzle with pliers and
pull to remove.
Insert the replacement nozzle in the housing. Press rmly to fully
seat the nozzle so that it will clear the retaining setscrew. Using the
hex key on the Hunter wrench, turn the setscrew down to retain
the nozzle.
Note: When changing from one nozzle number to another, check the
stator for proper setting before returning the head to service.
STATOR RING ADJUSTMENT
When installing the nozzle, you must also correctly set the stator to
ensure proper speed of rotation. Failure to correctly set the stator may
cause a non-rotation condition.
The stator is located in the base of the riser assembly. First remove the riser
assembly from the body. Then remove the lter screen to access the stator.
The stator has a protruding tab that aligns with a pointer. Remove the stator
by grasping this tab with pliers and pulling. Replace the stator so that its
pointer is set to the number agreeing with the nozzle installed. Refer to the
Nozzle/Stator Chart at right for nozzle and stator settings.
Visually check for proper assembly of nozzle, setscrews, and stator. Reverse
the preparation procedure to reassemble the unit.
PRECIPITATION RATE ADJUSTMENT
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 nozzle. For wet areas, install a smaller nozzle.
I-90-ADV ONLY: ARC ADJUSTMENT
Adjustable heads are preset to approximately 180°. Sprinklers may be
adjusted with water on or o. It is recommended that initial
adjustment be made before installation.
Rotate the nozzle turret clockwise to the right stop. This is the xed
side of the arc. The nozzle turret must be held in this position for arc
adjustments. The right stop does not change.
To Increase Arc:
1.
Insert the plastic key end of the Hunter wrench into the adjustment
socket (Fig. 1 & 2).
2. While holding the nozzle turret at the right stop, turn the wrench
clockwise. Each full 360° turn of the wrench increases the arc 45°.
3. Adjust to any arc between 40° and 360°. The wrench will stop
turning, or there will be a ratcheting noise, when the maximum arc
of 360° (full circle) has been reached.
To Decrease Arc:
1. Insert the plastic key end of the Hunter wrench into the adjustment
socket (Fig. 1 & 2).
2.
While holding the nozzle turret at the right stop, turn the wrench
counterclockwise. Each full 360° turn of the wrench will decrease the arc 45°.
3. Adjust to any arc between 40° and 360°. The wrench will stop turning,
or there will be a ratcheting noise, when the minimum arc of 40°
has been reached.
Note: It is not necessary to disassemble the sprinkler to make adjustments.
I-90-ADV ONLY: ALIGNING THE RIGHT (FIXED) SIDE OF THE ARC
If the right side of the arc is not properly aligned, the result may be a wet walkway or a
dry turf area. The right side can easily be realigned. One way to realign the right stop is
to unscrew the body cap counterclockwise and remove the internal assembly from the
body. Once removed, rotate the nozzle turret to the right stop. Then insert the internal
assembly back into the body with the nozzle aligned to the right side of the area you want
irrigated. At this point you realigned the right arc stop, and you can adjust the le arc to an
appropriate setting.
I-90 AD V
Fig. 1
Non-
Potable
Water
Specic
Model
Arc Adjustment Socket
Li Up
Socket
Arc Adjustment
Direction
Fig. 2
Filter Screen
I-90 Riser Assembly
Retainer Cap
Opening
for Nozzle
Stator Ring
I-90 GEAR-DRIVEN SPRINKLERS
INSTITUTIONAL SERIES
hunterindustries.com
NOZZLE/STATOR CHART
Nozzle
Numbers
Stator
Position
25 - Lt. Blue 25
33 - Gray 33
38 - Red 38
43 - Dk. Brown 43
48 - Dk. Green 48
53 - Dk. Blue 53
63 - Black 63
73 - Orange 73

PERFORMANCE CHARTS
Notes:
Precipitation rates for ADV models are calculated for 180° operation. Precipitation rates for 36V models are calculated
for 360° operation. All triangular rates are equilateral. Complies to ASAE standard.
© 2020 Hunter Industries Inc. LIT-364 E 1/20
I-90-ADV NOZZLE PERFORMANCE DATA
Nozzle Pressure
PSI
Radius
.
Flow
GPM
Precip in/hr
25
80 66 29.5 1.30 1.51
90 67 31.5 1.35 1.56
Lt. Blue
100 68 33.2 1.38 1.60
110 69 35.6 1.44 1.66
33
80 68 36.2 1.51 1.74
90 69 38.2 1.54 1.78
Gray
100 70 40.4 1.59 1.83
110 71 42.6 1.63 1.88
38
80 72 40.6 1.51 1.74
90 73 43.0 1.55 1.79
Red
100 75 45.4 1.55 1.79
110 76 47.6 1.59 1.83
43
80 74 46.1 1.62 1.87
90 74 48.5 1.70 1.97
Dk. Brown
100 75 50.7 1.74 2.00
110 77 53.4 1.73 2.00
48
80 77 50.2 1.63 1.88
90 79 52.6 1.62 1.87
Dk. Green
100 81 55.1 1.62 1.87
110 82 57.5 1.65 1.90
53
80 81 54.9 1.61 1.86
90 84 57.2 1.56 1.80
Dk. Blue*
100 86 59.5 1.55 1.79
110 87 62.1 1.58 1.82
120 88 64.4 1.60 1.85
63
80 86 62.3 1.62 1.87
90 88 65.5 1.63 1.88
Black
100 90 69.0 1.64 1.89
110 91 71.9 1.67 1.93
120 92 74.7 1.70 1.96
73
80 89 72.7 1.77 2.04
90 91 75.4 1.75 2.02
Orange
100 93 78.1 1.74 2.01
110 95 80.9 1.73 1.99
120 97 83.8 1.71 1.98
I-90-36V NOZZLE PERFORMANCE DATA
Nozzle Pressure
PSI
Radius
.
Flow
GPM
Precip in/hr
25
80 73 30.5 0.55 0.64
90 75 32.4 0.55 0.64
Lt. Blue
100 76 34.3 0.57 0.66
110 78 36.5 0.58 0.67
33
80 77 36.3 0.59 0.68
90 78 38.4 0.61 0.70
Gray
100 80 40.6 0.61 0.71
110 81 42.7 0.63 0.72
38
80 80 40.6 0.61 0.71
90 82 42.9 0.61 0.71
Red
100 83 45.3 0.63 0.73
110 85 47.7 0.64 0.73
43
80 83 46.2 0.65 0.75
90 84 48.6 0.66 0.77
Dk. Brown
100 85 50.9 0.68 0.78
110 86 53.4 0.69 0.80
48
80 86 49.6 0.65 0.75
90 89 52.5 0.64 0.74
Dk. Green
100 90 54.8 0.65 0.75
110 91 57.3 0.67 0.77
53
80 89 54.2 0.66 0.76
90 90 56.7 0.67 0.78
Dk. Blue*
100 92 59.2 0.67 0.78
110 93 61.7 0.69 0.79
120 94 64.2 0.70 0.81
63
80 92 63.2 0.72 0.83
90 94 65.9 0.72 0.83
Black
100 96 69.4 0.72 0.84
110 97 72.0 0.74 0.85
120 98 74.9 0.75 0.87
73
80 96 72.1 0.75 0.87
90 98 75.0 0.75 0.87
100 99 77.8 0.76 0.88
Orange
110 102 80.5 0.74 0.86
120 103 83.3 0.76 0.87
I-90-ADV NOZZLE PERFORMANCE DATA
Nozzle Pressure Radius Flow Precip mm/hr
bar kPa m m3/hr l/min
25
5.5 550 20.1 6.70 111.7 33.1 38.2
6.0 600 20.4 7.16 119.2 34.3 39.6
Lt. Blue
7.0 700 20.7 7.54 125.7 35.1 40.5
7.5 750 21.0 8.09 134.8 36.6 42.2
33
5.5 550 20.7 8.22 137.0 38.3 44.2
6.0 600 21.0 8.68 144.6 39.2 45.3
Grey 7.0 700 21.3 9.18 152.9 40.3 46.6
7.5 750 21.6 9.68 161.3 41.3 47.7
38
5.5 550 21.9 9.22 153.7 38.3 44.2
6.0 600 22.3 9.77 162.8 39.5 45.6
Red
7.0 700 22.9 10.31 171.9 39.5 45.6
7.5 750 23.2 10.81 180.2 40.3 46.5
43
5.5 550 22.6 10.47 174.5 41.2 47.5
6.0 600 22.6 11.02 183.6 43.3 50.0
Dk. Brown 7.0 700 22.9 11.52 191.9 44.1 50.9
7.5 750 23.5 12.13 202.1 44.0 50.9
48
5.5 550 23.5 11.40 190.0 41.4 47.8
6.0 600 24.1 11.95 199.1 41.2 47.6
Dk. Green 7.0 700 24.7 12.52 208.6 41.1 47.4
7.5 750 25.0 13.06 217.7 41.8 48.3
53
5.5 550 24.7 12.47 207.8 40.9 47.2
6.0 600 25.6 12.99 216.5 39.6 45.8
Dk. Blue*
7.0 700 26.2 13.52 225.2 39.3 45.4
7.5 750 26.5 14.11 235.1 40.1 46.3
8.0 800 26.8 14.63 243.8 40.7 47.0
63
5.5 550 26.2 14.15 235.8 41.2 47.6
6.0 600 26.8 14.88 247.9 41.4 47.8
Black 7.0 700 27.4 15.67 261.2 41.7 48.1
7.5 750 27.7 16.33 272.2 42.5 49.0
8.0 800 28.0 16.97 282.8 43.2 49.8
73
5.5 550 27.1 16.51 275.2 44.9 51.8
6.0 600 27.7 17.13 285.4 44.5 51.4
Orange 7.0 700 28.3 17.74 295.6 44.2 51.0
7.5 750 29.0 18.38 306.2 43.8 50.6
8.0 800 29.6 19.04 317.2 43.5 50.3
* Factory-installed nozzle
I-90-36V NOZZLE PERFORMANCE DATA
Nozzle Pressure Radius Flow Precip mm/hr
bar kPa m m3/hr l/min
25
5.5 550 22.3 6.93 115.5 14.0 16.2
6.0 600 22.9 7.36 122.6 14.1 16.3
Lt. Blue 7.0 700 23.2 7.79 129.8 14.5 16.8
7.5 750 23.8 8.29 138.2 14.7 16.9
33
5.5 550 23.5 8.25 137.4 15.0 17.3
6.0 600 23.8 8.72 145.4 15.4 17.8
Grey 7.0 700 24.4 9.22 153.7 15.5 17.9
7.5 750 24.7 9.70 161.6 15.9 18.4
38
5.5 550 24.4 9.22 153.7 15.5 17.9
6.0 600 25.0 9.75 162.4 15.6 18.0
Red 7.0 700 25.3 10.29 171.5 16.1 18.6
7.5 750 25.9 10.84 180.6 16.1 18.6
43
5.5 550 25.3 10.49 174.9 16.4 18.9
6.0 600 25.6 11.04 184.0 16.8 19.4
Dk. Brown 7.0 700 25.9 11.56 192.7 17.2 19.9
7.5 750 26.2 12.13 202.1 17.7 20.4
48
5.5 550 26.2 11.27 187.8 16.4 18.9
6.0 600 27.1 11.93 198.7 16.2 18.7
Dk. Green 7.0 700 27.4 12.45 207.4 16.5 19.1
7.5 750 27.7 13.02 216.9 16.9 19.5
53
5.5 550 27.1 12.31 205.2 16.7 19.3
6.0 600 27.4 12.88 214.6 17.1 19.8
Dk. Blue* 7.0 700 28.0 13.45 224.1 17.1 19.7
7.5 750 28.3 14.02 233.6 17.4 20.1
8.0 800 28.7 14.58 243.0 17.8 20.5
63
5.5 550 28.0 14.36 239.2 18.3 21.1
6.0 600 28.7 14.97 249.5 18.2 21.1
Black 7.0 700 29.3 15.76 262.7 18.4 21.3
7.5 750 29.6 16.36 272.5 18.7 21.6
8.0 800 29.9 17.01 283.5 19.1 22.0
73
5.5 550 29.3 16.38 272.9 19.1 22.1
6.0 600 29.9 17.04 283.9 19.1 22.0
Orange 7.0 700 30.2 17.67 294.5 19.4 22.4
7.5 750 31.1 18.29 304.7 18.9 21.8
8.0 800 31.4 18.92 315.3 19.2 22.2