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NOTE:

 The 

RPS75

 is factory preset with a 180° arc setting, and includes a 

pre-installed #3 nozzle.

CHANGING A NOZZLE 

   1. REMOVING THE NOZZLE RETENTION SCREW

 

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.

   2. PULL UP THE RISER

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 the riser assembly with one hand.

   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. 

   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 

and used to adjust the distance of the spray.

SETTING THE ARC ADJUSTMENT

NOTE: 

The 

RPS75 Gear Driven Sprinkler

 has a fixed right start and an 

adjustable left stop.

   1. POSITIONING NOZZLE TURRET TO ITS “RIGHT START”

Place your fingers 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 fixed side of the 
arc. The nozzle turret must be held in this position for arc adjustments. The right 
start does not change.

   2. ADJUSTING THE RIGHT (FIXED) SIDE OF ARC

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. 

OPTION 1: REPOSITION CAN ON THE FITTING

Turn the sprinkler can 

(K)

 and the fitting 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.

   3. ADJUSTING THE LEFT (VARIABLE) 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

   1. INSTALL AND BURY

Do not use pipe dope. Thread the sprinkler on the pipe. Bury the sprinkler flush 
 on the same watering zone.

   2. INSPECTING THE FILTER

Unscrew the top 

(H)

 and lift the complete sprinkler assembly 

(J)

 out of the can 

(K)

. The filter is located on the bottom of the sprinkler assembly and can be easily 

pulled out, cleaned and re-installed.

   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 dam

 

age to the internal components.

RPS75 GEAR DRIVEN SPRINKLER SETTING INSTRUCTIONS

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.  L-58917
Part Number: 16005103 REV10

M

Arc Set 

Adjustment

L

 Keyhole

F

 Nozzle 

Retention 
Screw

I

 Nozzle Turret 

J

 Sprinkler 

Assembly

K

 

Can

E

 Key in Keyhole

I

 

Nozzle 
Turret

F

 Nozzle

Retention 
Screw

H

 Top

G

 Nozzle

Socket

C

 Nozzle

D

 Nozzle Prongs

B

A

 RPS75 Key

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