16 • SCREENGUARD AUTOMATIC SCREEN FILTERS OPERATION INSTALLATION AND MAINTENANCE GUIDE
MAINTENANCE
PERIODIC CHECKS
Perform yearly or periodical checks at the beginning of the season, according to the following:
1. Replace the (4) 1.5V batteries at the beginning of every season or every six months;
refer to ‘Battery Removal & Replacement’.
2. Check the condition of the coarse screen. If damaged, replace according to ‘Coarse Screen Removal & Replacement’.
3. Check the condition of the fine screen assembly. If damaged, replace according to ‘Fine Screen Assembly Removal &
Replacement’.
4. Check the condition of the dirt collector bearing and screen bearing. If any of the bearings have become misshaped, (oval),
replace with a new one.
5. Check the mechanical condition of the hydraulic piston assembly. Verify piston’s free movement. If damaged or deteriorated,
replace according to ‘Hydraulic Piston Assembly Removal & Replacement’.
6. Check the dirt collector suction nozzles height (see table). If damaged, replace according to ‘Dirt Collector Removal &
Replacement’.
7. Check the condition of the controller while operating with running water.
8. Check the filter housing for paint damage or corrosion. If required, clean the area with sandpaper and apply a thin layer
of basic + epoxy paint.
9. Check for leaks.
FIGURE 11
NOZZLE HEIGHT
TYPE
2.99”
HEIGHT
All Filters
FIGURE 12
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