Pentair PR AQUA ROTOFILTER Installation And Operation Manual page 45

SECTION 11: SCREEN MAINTENANCE
6. Once the panel has cleared the set screws,
thread the screws back out until they keep the
panel in place.
7. Ensure both panels are centered and seated
into retainer bar as far as possible. Tighten the
fasteners of the retainer bar.
8. Repeat steps 1 through 7 for the front screen
section and remaining sections. It is best to start
at the back of the drum and move forward when
moving to a new section.
9. Adjust the set screws on each section until they
are centered in the tapped flat bar. See Figure 47.
Figure 47. Centering the set screws
10. Reinstall the two screen clamps in each section
by pushing the angled ends of the screen clamp
down onto the screen. Slide the clamps onto the
set screws on the tapped flat bar.
11. Install washers, screen cams, and nylocs onto
each end of the screen clamp (use anti-seizing
compound on all fasteners). Using a hex key
wrench, hold the set screw while tightening the
nyloc with an openend wrench. See Figure 48.
Figure 48. Reinstalling screen clamps
12. Tighten both ends of the clamp evenly, until
you have equal spacing between the screen
clamp and the flat bar, and the screen panel is
compressing the gasket by approximately 0.32
centimeters (0.125 inches).
13. Ensure the screen cams are rotated until tight.
14. Rotate the drum to a new section. Repeat steps
1 through 12 for remaining sections.
PR Aqua Rotofilter™ Drum Filter Installation and Operation Manual
45