Rain Bird 500 Series Operation & Maintenance Manual page 20

Problem
6. Low pressure
7. Mechanical failure to
retract
8. Non-rotation / Stalling /
Tripping
9. Sprinkler rotates too slowly Insufficient water pressure
Rain Bird Golf Rotors Operation and Maintenance Manual
20
Aspersores de golf Rain Bird Manual de operación y mantenimiento
Possible Cause
Incorrect valve assembly in the rotor
Plugged or damaged nozzle
PRS out of adjustment
PRS not holding pressure setting
Broken valve filter screen
Blockage in tubes or case probe
Tube crimped or pinched
Debris obstructing internal assembly screen Clean internal assembly screen.
Inlet rock screen clogged
Debris in PRS assembly
Retract spring may be installed with an
end coil doubled over, preventing internal
retraction
Sand or rock particles may have wedged
between the bearing guide and the riser
Stator missing, or wrong stator installed
Debris or algae clogging the internal
assembly screen
Nozzle clogged
Inlet screen clogged
Arc was misadjusted and left in neutral
Arc setting too small
Improper nozzle/stator combination
Blinded filter screen
Correction
Check for proper valve assembly. Replace if needed.
Clean or replace nozzle.
Adjust pressure by turning adjusting screw using a
screwdriver.
Replace PRS cartridge in selector.
Replace screen and clean out valve assembly.
Locate and clear blockage.
Repair or replace tube.
Remove case. Clean and reinstall rock screen.
Clean out any debris between poppet and lower
stem.
Remove internal assembly and without
disassembling, compress the spring down until you
free up the end coil. Reseat the end coil and reinstall
the internal assembly.
Pull the internal assembly and clean. Brush any
rocks or debris away from the head of the rotor.
Remove internal assembly. Check for proper stator.
Clean internal screen.
Clean nozzle.
Clean inlet screen. This may be difficult if debris has
fallen back down out of sight. Examine and clean
thoroughly.
Turn the nozzle housing through the next trip point.
Reset arc to no less than 45 degrees.
See solutions for Problem #6 "Low Pressure. "
Check for proper stator configurations and nozzle/
stator combinations. Clean as needed.
Clean as needed.