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NOZZLE INSTALLATION
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Caution! The riser assembly is under spring tension. Eye protection should be worn and proper procedures followed when servicing this product.
Tools needed: Phillips screwdriver, snap-ring tool p/n 251000, T-handle tool p/n 319100, riser service tool p/n 279600, needle-nose pliers
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PREPARATION:
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The logo cap is retained by a central Phillips screw. To gain access to the upper snap-ring remove the logo cap and set aside. Press the riser down to clear the snap-ring. Remove the snap-ring using snap-ring tool p/n 251000. Withdraw the riser from the body using T-handle tool p/n 319100. Place the riser assembly’s lower end into the base of riser service tool p/n 279600. Press the tool’s metal bar down over the riser spring until the bar enters the slots in the tool’s base. Rotate the bar to engage with the tool’s base, thereby holding the spring under tension.
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NOZZLE REMOVAL AND REPLACEMENT
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The nozzle is retained in the nozzle housing by a setscrew. To remove the nozzle back out the setscrew so that the nozzle will clear. Grasp the nozzle with pliers and pull to remove.
Insert the replacement nozzle in the housing. Press firmly to fully seat the nozzle so that it will clear the retaining setscrew.
Run the setscrew down to retain the nozzle.
Note: When changing from one nozzle number to another, check the stator for proper setting before returning the head to service.
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STATOR RING INSTALLATION:
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Note: When installing nozzles you must also correctly set the stator to ensure proper speed of rotation. Failure to correctly set the stator may cause a non-rotation condition.
The stator is located in the base of the riser assembly. First remove the riser assembly from the body. Then remove the filter screen to access the stator.
The stator has a protruding tab that aligns with a pointer. Remove the stator by grasping this tab with pliers and pulling. Replace the stator so that its pointer is set to the number agreeing with the nozzle installed. Refer to the Nozzle Chart above for nozzle and stator settings.
Visually check for proper assembly of nozzles, setscrews and stator. Reverse the preparation procedure to reassemble the unit.
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