Hog Slat Inc. Newton Grove, NC USA March 2021 Rev A2 6 Grow-Flex™ Feed Systems B. Replacing 8789 Switch Assembly on 24482 Control Unit 1. (Figure 2) illustrates a typical installation example of the HS589 Control Unit Switch Assembly to a 24482 Control Unit. 2. MAKE SURE ALL POWER IS DISCONECTED FROM THE CONTROL UNIT. 3. Detach the Drop Cone from Control Unit or open the Access Door if available in order to reach the Diaphragm located on the inside of Control Unit. 4. Remove the four nuts that are securing the old Switch Assembly to the front side of the Control Unit. Make sure the Diaphragm on the inside of the Control Unit does not fall out of place if you are not replacing it. See Steps 5-6 if replacing the Diaphragm. Otherwise, see Step 7. 5. Remove the old Diaphragm from the bottom opening of the Control Unit. 6. Fit the new HS582 Diaphragm into the same holes of the Control Unit panel. 7. Discard all parts of the old Switch Assembly, the old Seal, and all of the old fasteners that joined the parts to the Control Unit. 8. Fit the HS589CR-2 Seal on the studs of the Diaphragm as shown in Figure 2. 9. Align the four inner holes of the HS589-8 Mounting Plate with the four studs of the Diaphragm. 10. Bolt the HS589-8 Mounting Plate in place using the four 10-32 hex nuts supplied. 11. Place the new Switch Assembly Enclosure on the studs of the HS589-8 Mounting Plate. 12. Fasten the Switch Assembly Enclosure to the HS589-8 Mounting Plate using the four 10-32 lock nuts and four #10 washers supplied. Figure 2
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