Arkal B Series, Руководство по техническому обслуживанию

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SERIES - B
- 18 -
Screen Removal & Installation (Figure 8)
1. Close the inlet and the outlet line valves.
2. Confirm filter draining prior to service.
3. Disconnect the control tube from the filter assembly's upper section.
4. Remove the six nuts and washers connecting both parts of the filter's housing (See Figure 8).
5. Carefully remove the control assembly.
6. Remove the upper part of the filter assembly together with the hydraulic motor and
dirt collector.
7. Pull the screen out of the filter housing assembly.
8. Remove both upper and lower seals from the old screen.
9. Remove the screen bearing from the old screen’s lower section.
10. Install the screen bearing into the new screen’s lower section.
11. Position both upper and lower seals into the new screen.
12. Lubricate upper and lower seals with
silicon grease
.
13. Slide the new screen into the filter housing assembly.
14. Verify that the straight side of the body seal (U-Ring) fits into the groove located in the filter
assembly’s upper section.
15. Verify that the dirt collector axis passes through the screen bearing.
16. Install the upper part of the filter assembly together with the hydraulic motor and dirt collector.
17. Carefully attach the control assembly to the filter housing with one of the six nuts and washers
connecting both parts of the filter housing.
18. Continue to cross connect both parts of the filter housing by using the additional five nuts and
washers. Do not over-tighten.
19. Connect the control tubes to the filter assembly housing (See Figure 7).
20. Open the inlet and the outlet line valves.
21. Check for leaks.
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
22. For AC controlled filter, refer to Appendix 1.
23. Perform a flushing cycle by disconnecting the low pressure tube from the differential pressure
indicator (closing of the electrical circuit) – re-connect it immediately as flushing starts.
24. Verify that the hydraulic flushing valve closes after 5 seconds.
25. Perform an additional flushing cycle manually, by operating the handle (turn clockwise 90
°
)
located on the solenoid (See Figure 3).