YAMIT AF-9800 Series, Руководство по техническому обслуживанию

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6.2 - Solenoid Removal & Installation
The solenoid hydraulically controls the flushing valve's operation.
1. Remove the upper cover, disconnect and remove the 4 x 1.5V batteries.
2. Disconnect the solenoid control tubes.
3. Remove the fittings from the damaged solenoid.
4. Disconnect the 2 electrical wiring from the control card terminals.
5. Remove the nut from the solenoid lower section.
6. Pull the solenoid out of the control assembly.
7. Insert a new solenoid into the control assembly.
8. Install the nut on the solenoid lower section.
9. Install the fittings on the ports of the new solenoid.
10. Connect the 2 electrical wiring to the control card terminals (See Figure 5).
11. Connect the solenoid control tubes.
12. Connect the 4 X 1.5V batteries according to the correct polarity and close the
electronic control unit cover.
13. 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.
14. Verify that the hydraulic flushing valve closes after 10 seconds.
15. Perform an additional flushing cycle manually by pushing the manual bottom (M
on the screen display). (See Figure 3)
Figure 5: Solenoid Removal & Installation
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
AF9800