®
RPS
75 Gear Driven Sprinkler Setting Instructions
NOTE: The RPS 75 is factory preset with a 180° arc setting, and includes a pre-installed #3 nozzle.
CHANGING A NOZZLE
s
REMOVING THE NOZZLE RETENTION SCREW
1
Use the hex (B) end of the Key to remove the nozzle retention screw
by turning counter-clockwise to remove or clockwise to re-install.
s
PULL UP THE RISER
2
Insert the (A) end of the Key in the keyhole (L) on the top of the nozzle
turret (I) and turn the key 1/4 turn to insure 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 (G). Hold riser assembly with one hand.
s
3
REMOVING THE NOZZLE
With nozzle retention screw removed, the nozzle may be removed by
pulling outward on the nozzle prongs (D) with a pair of needle-nose pliers.
s
4
INSTALLING A NOZZLE
Press the desired nozzle (C) into the nozzle socket (G). Make sure
the nozzle number is visible and the nozzle “prongs” (D) are up. Then,
re-install the nozzle retention screw (F). NOTE: The nozzle retention
screw is also a break-up screw, used to adjust the distance of the spray.
SETTING THE ARC ADJUSTMENT
NOTE: The RPS75 Gear Driven Sprinkler has a xed right start and
an adjustable left stop.
s
POSITIONING NOZZLE TURRET TO ITS “RIGHT START”
1
Place your ngers on the top center of the nozzle turret (I). Rotate the
turret counter- clockwise to the left stop to complete any interrupted
rotation cycle. Rotate the nozzle turret clockwise to the right start.
This is the xed side of the arc. The nozzle turret must be held in this
position for arc adjustments. The right start does not change.
s
ADJUSTING THE RIGHT (FIXED) SIDE OF ARC
2
If the right side of the arc is not properly aligned, the sprinkler may
spray in areas not intended for watering such as driveways or adjacent
properties. The right side arc can easily be realigned.
RPS75 Key
A
L Keyhole
M
Arc Set
Adjustment
F Nozzle
Retention
Screw
G Nozzle
Socket
D Nozzle
Prongs
B
I Nozzle Turret
E Key in Keyhole
C Nozzle
F Nozzle
Retention
Screw
I
Nozzle
Turret
H Top
OPTION 1: REPOSITION CAN ON THE FITTING
Turn the sprinkler can (K) and the tting below it left or right to the
desired position. This may require temporary removal of the soil around
the sprinkler to allow you to grip the sprinkler can.
OPTION 2: REMOVE INTERNAL RISER ASSEMBLY AND REPOSITION
Unscrew the top (H) counter-clockwise and remove the internal riser
assembly from the can. Once removed with nozzle turret (I) at its right
start, reposition the riser assembly so that nozzle arrow points to the
desired start position. Replace the riser assembly back in the can and
screw on the top. At this point you have realigned the right arc stop,
and you can adjust the left arc to an appropriate setting.
(continued on reverse side)
J Sprinkler
Assembly
K
Can
RPS
®
75 Gear Driven Sprinkler Setting Instructions
SETTING THE ARC ADJUSTMENT
(continued from reverse side)
s
ADJUSTING THE LEFT (VARIABLE)
3
SIDE OF THE ARC
INCREASING THE ARC
Insert the (A) end of the Key into the arc set
adjustment slot (M). While holding the nozzle turret
(I) at the right start, turn the Key clockwise. Each
full 360° turn of the Key will increase the arc 90°.
Adjust to any arc between 40° and 360°. The Key
will stop turning, or there will be ratcheting noise,
when the maximum arc of 360° has been reached.
DECREASING THE ARC
Insert the (A) end of the Key into the arc set
adjustment slot (M). While holding the nozzle turret
(I) at the right start, turn the Key counter-clockwise.
Each full 360° turn of the Key will decrease the
arc 90°. Adjust to any arc between 40° and 360°.
The Key will stop turning, or there will be a
ratcheting noise, when the minimum arc of 40°
has been reached.
SPRINKLER INSTALLATION
s
INSTALL AND BURY
1
Do not use pipe dope. Thread the sprinkler on the pipe.
Bury the sprinkler ush on the same watering zone.
NOTE: Gear driven sprinklers and pop-up sprays should
not be installed on the same watering zone.
s
INSPECTING THE FILTER
2
Unscrew the top (H) and lift the complete sprinkler
assembly (J) out of the can (K). The lter is located on
the bottom of the sprinkler assembly and can be easily
pulled out, cleaned and re-installed.
s
3
WINTERIZATION TIPS
When using an air compressor to remove water
from the system please note the following:
a. Do not exceed 30 PSI.
b. Always introduce air into the system gradually
to avoid air pressure surges. Sudden release of
compressed air into the sprinkler can cause damage.
c. Each zone should run no longer than 1 minute on
air. Sprinklers turn 10 to 12 time faster on air than
on water. Over spinning rotors on air can cause
damage to the internal components.
PERFORMANCE DATA
NOZZLE PRESSURE RADIUS FLOW RATE PRECIP in/hr
PSI kPa Bars Ft. M. GPM L/M M
#0.75 30 206 2.1 29 8.8 0.7 2.6 0.16 0.16 0.19 4 5
40 275 2.8 30 9.1 0.8 3.0 0.18 0.17 0.20 4 5
50 344 3.4 30 9.1 0.9 3.4 0.20 0.19 0.22 5 6
60 413 4.1 31 9.4 1.0 3.8 0.23 0.20 0.23 5 6
#1.0 30 206 2.1 30 9.1 0.9 3.4 0.20 0.19 0.22 5 6
40 275 2.8 31 9.4 1.0 3.8 0.23 0.20 0.23 5 6
50 344 3.4 31 9.4 1.2 4.5 0.27 0.24 0.28 6 7
60 413 4.1 32 9.8 1.3 4.9 0.30 0.24 0.28 6 7
#1.5 30 206 2.1 32 9.8 1.2 4.5 0.27 0.23 0.26 5 6
40 275 2.8 33 10.1 1.4 5.3 0.32 0.25 0.29 6 7
50 344 3.4 34 10.4 1.6 6.1 0.36 0.27 0.31 7 8
60 413 4.1 34 10.4 1.8 6.8 0.41 0.30 0.35 7 9
#2.0 30 206 2.1 34 10.4 1.6 6.1 0.36 0.27 0.31 7 8
40 275 2.8 36 11.0 1.8 6.8 0.41 0.27 0.31 7 8
50 344 3.4 38 11.6 2.0 7.6 0.45 0.27 0.31 7 8
60 413 4.1 38 11.6 2.2 8.3 0.50 0.29 0.34 7 9
#3.0 30 206 2.1 36 11.0 2.0 7.6 0.45 0.30 0.34 7 9
Pre-
40 275 2.8 38 11.6 2.4 9.1 0.55 0.32 0.37 8 9
installed
50 344 3.4 40 12.2 2.7 10.2 0.61 0.32 0.38 8 10
60 413 4.1 40 12.2 2.9 11.0 0.66 0.35 0.40 9 10
#4.0 30 206 2.1 36 11.0 2.6 9.8 0.59 0.39 0.45 10 11
40 275 2.8 40 12.2 3.0 11.4 0.68 0.36 0.42 9 11
50 344 3.4 42 12.8 3.4 12.9 0.77 0.37 0.43 9 11
60 413 4.1 42 12.8 3.7 14.0 0.84 0.40 0.47 9 12
#6.0 40 275 2.8 38 11.6 4.2 15.9 0.91 0.56 0.65 14 16
50 344 3.4 43 13.1 4.9 18.5 1.11 0.51 0.59 13 15
60 413 4.1 46 14.0 5.5 20.8 1.25 0.50 0.58 13 15
70 482 4.8 47 14.3 6.0 22.7 1.36 0.52 0.60 13 15
#8.0 40 275 2.8 45 13.7 6.0 22.7 1.36 0.57 0.66 14 17
50 344 3.4 48 14.6 6.8 25.7 1.54 0.57 0.66 14 17
60 413 4.1 49 14.9 7.6 28.8 1.73 0.61 0.70 15 18
70 482 4.8 51 15.5 8.2 31.0 1.86 0.61 0.70 15 18
3
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mm/hr
LOW ANGLE PERFORMANCE DATA
NOZZLE PRESSURE RADIUS FLOW RATE PRECIP in/hr
PSI kPa Bars Ft. M. GPM L/M M
#1.0 30 207 2.0 22 6.7 1.2 4.5 .34 0.48 0.55 12 14
40 275 3.0 24 7.3 1.7 6.4 .39 0.57 0.66 14 17
50 344 3.5 26 7.9 1.8 6.8 .41 0.51 0.59 13 15
60 413 4.0 28 8.5 2.0 7.6 .46 0.49 0.57 13 14
#3.0 30 207 2.0 29 8.8 3.0 11.4 .68 0.69 0.79 18 20
40 275 3.0 32 9.8 3.1 11.7 .71 0.58 0.67 15 17
50 344 3.5 35 10.7 3.5 13.2 .80 0.55 0.64 14 16
60 413 4.0 37 11.3 3.8 14.4 .87 0.53 0.62 13 16
#4.0 30 207 2.0 31 9.4 3.4 12.9 .78 0.68 0.79 17 20
40 275 3.0 34 10.4 3.9 14.8 .89 0.65 0.75 16 19
50 344 3.5 37 11.3 4.4 16.7 1.00 0.62 0.71 16 18
60 413 4.0 38 11.6 4.7 17.8 1.07 0.63 0.72 16 18
#6.0 40 275 3.0 38 11.6 6.5 24.6 1.68 0.87 1.00 22 25
50 344 3.5 40 12.2 7.3 27.6 1.66 0.88 1.01 22 25
60 413 4.0 42 12.8 8.0 30.3 1.82 0.87 1.01 22 26
70 482 5.0 44 13.4 8.3 32.6 1.96 0.86 0.99
*All precipitation rates calculated for 180° operation.
For the precipitation rate for a 360° sprinkler, divide by 2.
3
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K-RAIN MANUFACTURING CORP.
1640 Australian Avenue
Riviera Beach, FL 33404 USA
PH: 561.844.1002 / 1.800.735.7246
FAX: 561.842.9493
www.krain.com
© K-RAIN Manufacturing Corp.
Part Number: 16005103 Rev. 11
/
mm/hr
22 25
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