Toro MINI8 Installation Instructions 373 0274A Catalog

To Set The Arc
Screen Maintenance
Figure 9
Mini 8, Gear Driven Sprinkler
User’s Guide
The Mini 8 rotor arc is pre-set  at the factory.
The screen can be accessed through the
bottom of the riser. Remove the cap  of the
Mini 8 and lift the riser assembly  out of the
housing cannister. If plugged, the screen  can
be removed, cleaned, and re-inserted into
the riser.
The Mini 8 rotor has a fixed  LEFT stop. To find the left stop position,
rotate the nozzle turret clockwise (to the  right) until it stops, then rotate the
nozzle turret all the way back to  the left.
The Mini 8 rotor is designed for  residential and light commercial
installations. It comes in three sizes,  4" pop up, 6" pop up and 12" pop up.
To increase the arc, insert the key  into the arc adjuster shown in Figure 6.
Hold the turret in place while turning  the tool clockwise. Keep turning until
the arc indicator arrow points to the  desired arc angle.
Screen
Nozzling Up The System
The 1.5 GPM nozzle comes pre-installed from  the factory. A nozzle tree
consisting of four additional nozzles is provided  with each rotor (Figure 1).
Please see the nozzle performance chart for  flow rates. By using various
combinations of nozzle flow rates, you can  balance the sprinklers to
achieve approximately the same precipitation rates.
As an example indicated in Figure 7,  the arc is set to 270˚. The sprinkler
will then water from the left stop  and rotate clockwise (see Figure 8) until
270˚, the adjusted right stop, is  reached. The sprinkler will then return back
to the left stop and repeat the  cycle.
Mini 8 Nozzle Performance
Every case of Mini 8 product contains  two Mini 8 rotor keys. The Mini 8 key
is used to pull up the riser,  to remove the nozzle, to reduce the radius and
to adjust the arc (Figure 2).
To decrease the arc, insert the key  into the arc adjuster. Hold the turret in
place while turning the tool counter clockwise.  Keep turning until the arrow
points to the desired arc.
Nozzle
(Gallons)
Pressure
(PSI)
Flow
(GPM)
Radius
(Feet)
Pressure
(kPa)
Flow
(L/M)
Flow
Radius
(Meters)
3
(M /H)
0.75
1.0
1.5
2.0
3.0
30
40
50
0.8
0.9
1.2
19
20
21
207
276
345
3.03
3.41
4.54
0.2
0.2
0.3
5.8
6.1
6.4
Figure 1
Figure 2
To adjust the arc while the rotor  is running, turn the turret gently in the
direction that it is spraying. Once  the left stop has been located, follow the
directions above to increase or decrease the  arc.
Pull-Up
Keyhole
Radius Adjustment/
Nozzle Retention
Screw
30
40
50
1.1
1.3
1.5
22
23
24
207
276
345
4.16
4.92
5.68
0.2
0.3
0.3
6.7
7.0
7.3
To line up the left stop with  landscape features which define the left side of
the irrigated arc, simply turn the housing  cannister and point the left stop
towards the desired direction. You may also  pull the riser up with the key
and rotate the LOWER portion of the  riser until the left stop is at the
desired position. DO NOT rotate the TOP portion of  the riser.
Arc Adjuster
30
40
50
1.2
1.4
1.6
26
28
30
207
276
345
4.54
5.30
6.06
0.3
0.3
0.4
7.9
8.5
9.1
Mini 8
Rotor Key
Arc Angle
Indicator
Nozzle Tree
Left Stop
Position
Figure 6
Increase
Figure 7
Left Stop Position
Figure 8
To Extract/Insert A Nozzle
30
40
50
1.4
1.7
2.0
30
31
32
207
276
345
5.30
6.43
7.57
0.3
0.4
0.5
9.1
9.4
9.8
Adjustable
Right Stop
Position
Angle Indicator
Points To 270˚
Use the winged portion of the key  to pull the riser up in order to access the
nozzle orifice. Insert the key into the  pull-up hole (Figure 3), turn it 90˚, and
pull up. Hold the riser in the  pulled up position.
Decrease
(270˚)
30
40
50
2.3
2.6
3.0
33
34
35
207
276
345
8.71
9.84
11.36
0.5
0.6
0.7
10.1
10.4
10.7
Using the end of the key, turn  the radius adjustment screw
counterclockwise until it clears the top of  the nozzle. See Figure 4A.
Insert the key into the nozzle right  side slot with the pointed end of the key
facing upwards. Use the point to extract  the nozzle out. See Figure 4B.
For Product Inquiries:
Installation Tips
The Toro Company
To install a nozzle, press the nozzle  into the nozzle socket (Figure 5A).
Turn the radius adjustment screw clockwise to  its desired location ensuring
that it is in a position to  hold the nozzle in place even if radius reduction is
not required (Figure 5B).
12"
Pop Up
CAUTION:The  Mini 8 rotor is designed for use in clean-water irrigation
systems only. Sprinkler component damage or malfunction can occur
if operated with any other water source.
5825
Jasmine Street
Riverside, CA  92502-0489
Tel: (909) 688-9221
(800)
664-4740
The Mini 8 rotor should be installed  with
the cap at the finished grade. It  is not
designed to be installed below grade.
Figure 9
6" Pop Up
Figure 3
Figure 4
Figure 5
B
A
See Figure 9.
4"
Pop Up
The radius adjustment screw can be used
to reduce the radius throw by up  to 25%.
You should note that this does not  reduce
the flow of the nozzle.
B
A
©
2003  The Toro Company
Form Number 373-0274 Rev. A
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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Document TypeCatalog
LanguageEnglish
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
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