Flushing Sprinkler Heads
WARNING
DUE TO HIGH OPERATING PRESSURE, NEVER STAND OR LEAN DIRECTLY OVER
SPRINKLER OR COME IN CONTACT WITH SPRAY WHEN ACTUATING SPRINKLER MANU-
ALLY OR AUTOMATICALLY. PRIOR TO ACTUATION OF SPRINKLER, USE A SLOT HEAD
SCREWDRIVER TO LIFT CAP TO OBSERVE DIRECTION OF NOZZLE. FAILURE TO COM-
PLY MAY RESULT IN SERIOUS INJURY.
1.With sprinkler operating, carefully step down on center of cap several times. Water will flow around riser and flush out debris.
2.Cycle sprinkler on and off several times to check for proper retraction. Cap should be even with top of body flange when fully retracted. If riser sticks in up position, check for debris lodged between riser and body. Flush out all debris. Remove sprinkler mechanism if necessary.
Servicing Pilot Valve
Refer to Toro Illustrated Parts Breakout Book, Form No.
1.Assure water supply to sprinkler is positively shut off and any residual pressure has been bled. If sprinkler is pressurized, main valve will open when Pilot Valve is disconnected from control tube.
2.Carefully remove turf and soil from side of sprinkler to expose Pilot Valve and control tubing.
3.Remove two retaining screws from Housing.
4.Pull Pilot Valve assembly away from sprinkler body and cut control tubing just below Tube Retainer. Unless Pilot Valve has been previously removed, control tubing length will be sufficient for
5.Remove Tube Retainer and remaining piece of control tubing from valve body fitting.
6.Remove Solenoid Assembly by turning it counterclockwise.
7.Pull Pilot Valve Body Assembly out of Housing.
8.Remove Diaphragm Assembly, Piston and Spring.
9.Remove Selector and Plunger Assembly. Selector retains Plunger in body.
10.Thoroughly clean and inspect all parts. Replace damaged parts as necessary and reassemble in reverse order.
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| © 1998 THE TORO COMPANY |
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| Irrigation Division • An ISO |
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| P.O. Box 489 |
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| PRINTING DATE | Riverside, California 92502 | FORM NO. |
8 | NOVEMBER 1998 | Printed in U.S.A. |
