MINIPRO™ GEAR DRIVEN SPRINKLER SETTING INSTRUCTIONS
NOTE: The MiniPro is factory preset with a 40° arc setting, and includes a pre-installed #1.5 nozzle.
CHANGING A NOZZLE
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1. REMOVING THE NOZZLE RETENTION SCREW
Use your K-Key (K) or a small flat blade screwdriver to remove the nozzle retention screw (C) by turning counter-clockwise to remove and clockwise to re-install.
Diagram Description: The diagram shows the top of the sprinkler head. Key components labeled include: A - Turret Top, B - Nozzle Position, C - Nozzle Retention Screw, D - Keyhole.
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2. PULL UP THE RISER
Insert the K-Key (K) in the keyhole (D) on the top of the nozzle turret (M) and turn the key ¼ turn to ensure that the key does not slip out of the keyhole when you pull it up. Firmly pull up the entire spring-loaded riser to access the nozzle socket (N). Hold the riser assembly with one hand.
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3. REMOVING THE NOZZLE
Insert the end of the K-Key (K), hook side up, into the tall slot along the right side of the nozzle (J) and pull up to pop out the nozzle. NOTE: Do not put the K-Key or any instrument into the nozzle opening.
Diagram Description: The diagram shows a K-Key being used to extract a nozzle (J) from its socket.
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4. INSTALLING A NOZZLE
Press the desired nozzle into the nozzle socket (N). Make sure the nozzle number is visible and the nozzle “wing” is up. Then, re-install the nozzle retention screw (C).
NOTE: The nozzle retention screw is also a break-up screw and used to adjust the distance of the spray.
SETTING THE ARC ADJUSTMENT
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1. FINDING THE LEFT START POSITION
Place your finger on the top center of the nozzle turret (M). Rotate the turret to the right until it stops and then back to the left until it stops. Notice the position of the nozzle arrow. This is the “Left Start” (L) position. The sprinkler will begin spraying from this position and rotate clockwise until it reaches the right “Arc Stop” (F).
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2. ORIENTING THE LEFT START POSITION
Insert the K-Key (K) in the keyhole (D) on the top of the nozzle turret (M) and turn the key ¼ turn to ensure that the key does not slip out of the keyhole when you pull it up. Being careful not to allow the nozzle turret to turn, firmly pull up the entire spring-loaded riser. Hold the lower riser assembly up with one hand. Now turn only the lower riser (O) clockwise or counter-clockwise until the nozzle arrow is pointing where you want the sprinkler to begin spraying.
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3. CHANGING THE ARC
Insert K-Key (K) or a flat blade screwdriver into the Arc Set Adjustment slot (I). Turn clockwise to increase the arc or counter-clockwise to decrease the arc. NOTE: The arc set arrow in the center of the nozzle turret rotates to show the correct setting.
Diagram Description: The diagram illustrates arc selection from 30° to 360°. Key components shown are the K-Key (K), Nozzle (J), Arc Set Adjustment (G), Arc Set Arrow (E), and Adjustable Range (F).
SPRINKLER INSTALLATION
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1. INSTALL AND BURY
Thread the sprinkler on the pipe. Bury the sprinkler flush to grade. NOTE: Do not use pipe dope. Gear driven sprinklers and pop-up sprays should not be installed on the same watering zone.
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2. INSPECTING THE FILTER
Unscrew the top and lift the complete sprinkler assembly out of the housing can (S). The filter is located on the bottom of the sprinkler assembly and can be easily pulled out, cleaned and re-installed.
Diagram Description: The diagram shows a cross-section of the sprinkler assembly. Labeled parts include: L - Key in Keyhole, M - Turret, N - Nozzle Socket, O - Lower Riser, P - Nozzle Key Notch.
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3. WINTERIZATION TIPS
When using an air compressor to remove water from the system please note the following:
- Do not exceed 30 PSI.
- Always introduce air into the system gradually to avoid air pressure surges. Sudden release of compressed air into the sprinkler can cause damage.
- Each zone should run no longer than 1 minute on air. Sprinklers turn 10 to 12 times faster on air than on water. Over spinning rotors on air can cause damage to the internal components.
PERFORMANCE DATA
The following table provides performance data for various nozzles at different pressures.
| NOZZLE | PRESSURE | RADIUS | FLOW | PRECIP in/hr | PRECIP mm/hr |
|---|---|---|---|---|---|
| PSI kPa BARS | Ft. M. | GPM L/M M³/H | |||
| #0.75 | 30 207 2.07 40 276 2.76 50 345 3.45 |
18' 5.5 19' 5.8 20' 6.1 |
0.8 2.8 0.17 0.8 3.0 0.18 0.9 3.4 0.20 |
.45 .51 .43 .49 .43 .50 |
11 13 11 13 11 13 |
| #1.0 | 30 207 2.07 40 276 2.76 50 345 3.45 |
26' 7.9 27' 8.2 27' 8.2 |
0.9 3.4 0.20 1.2 4.5 0.27 1.3 4.9 0.30 |
.26 .30 .32 .37 .34 .40 |
7 8 8 9 9 10 |
| #1.5 (PRE-INSTALLED) |
30 207 2.07 40 276 2.76 50 345 3.45 |
30' 9.1 31' 9.4 33' 10.1 |
1.8 6.8 0.41 2.1 8.0 0.48 2.4 9.1 0.55 |
.34 .40 .32 .37 .34 .39 |
9 10 8 9 9 10 |
| #2.0 | 30 207 2.07 40 276 2.76 50 345 3.45 |
35' 10.7 35' 10.7 35' 10.7 |
1.9 7.2 0.43 2.2 8.3 0.50 2.6 9.9 0.59 |
.39 .44 .42 .49 .42 .49 |
10 11 11 12 10 12 |
| #3.0 | 30 207 2.07 40 276 2.76 50 345 3.45 |
28' 8.4 30' 9.0 30' 9.0 |
2.7 10.2 0.7 3.0 11.4 0.8 3.3 12.5 0.8 |
.48 .55 .45 .51 .52 .60 |
12 14 11 13 13 15 |
*All precipitation rates calculated for 180° operation. For the precipitation rate for a 360° sprinkler, divide by 2.
Manufacturer Information
K-Rain Manufacturing Corp.
1640 Australian Avenue
Riviera Beach, FL 33404 USA
PH: 1-561-844-1002
1-800-735-7246
FAX: 1-561-842-9493
WEB: http://www.krain.com
K-RAIN Manufacturing Corp. 13005105 Rev. 15
