Inspect Mechanical Parts - Pentair PR AQUA ROTOFILTER Installation And Operation Manual

SECTION 9: MAINTENANCE

9.4 Inspect Mechanical Parts

Check the fasteners securing the screen
clamps and the support wheels, and check
the float assemblies.
9.4.1 Tools
SAE open-end wrench set
SAE hex key wrench set
Torque wrench
Figure 21. Adjusting the screen clamp fasteners
1: Open-end Wrench
2 Hex Key Wrench
3 Gasket
9.4.2 Procedure
Always follow the proper shutdown procedure
(Section 8.2 or 8.3) before performing any
maintenance on the Rotofilter.
1. Turn off power to the Rotofilter.
2. Lock out the control panel.
3. Remove the Rotofilter lid.
4. Adjust the screen clamps until the gasket (the
material underneath the clamp) is compressed by
approximately 0.32 centimeters (0.125 inches).
5. Check that all filter screens are undamaged. If
screens are damaged, see Section 11.1.
6. Tighten support wheel bolts with a
torque wrench.
Figure 22. Support wheel bolts
(wheel assembly appearance may vary)
1: Support Wheel Bolts
7. Inspect float switch assemblies for movement
and cleanliness. The switch should move easily.
If there is fouling, clean the float assembly with a
mild liquid detergent solution.
If a float needs to be removed for
NOTE
maintenance or replacement, make
a note of the float's orientation.
Most floats have a small "o" symbol on one side
indicating the top. Ensure the float is installed with
the "o" facing up. Mark the top of the float before
removing it if there is no distinguishable mark.
PR Aqua Rotofilter™ Drum Filter Installation and Operation Manual
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