General • Inspections

Screen Deck Monthly Maintenance Checks

Regular cleaning and maintenance is a sure way to keep your deck looking as good as new. Health and safety — Exposure to elements can lead to the growth of mold, mildew, and algae that can pose a danger to your health and safety. However, proper maintenance can make your deck a safe place to relax and unwind.

MaintainX

07/28/2022

Screen Deck Monthly Maintenance Checks

Once a month, clean the screen decks and inspect them for wear, following these steps:

Disassemble the screen deck stack.

After you ensure that the material feed to the sifter has been stopped and that all material has been discharged from the sifter, stop the sifter. Remove the flexible tubes at the sifter inlet and outlet, then remove the hold-down rods (or similar devices) holding the screen decks on the sifter, and lift the top cover off. (Some gyratory sifters have a large side access door in the housing that allows individual screen decks to be removed without a need to disassemble the screen deck stack.) Starting at the

Clean and inspect the screen decks.

Clean the screen decks one at a time. Use low-pressure compressed air or a soft brush to remove any loose material that has accumu- lated on the screen deck frame or screen insert.

If neces- sary, remove the screen insert from each deck frame to thoroughly clean both the insert frame and screen. Be care- ful not to tamp or jar the insert frame or screen.

Check the screen for tears, signs of blinding, and gaps between the screen edges and insert frame; if you find such problems, replace the screen insert.

Clean any remaining material from the screen deck before placing the screen insert back into the deck.

Inspect and replace screen deck gaskets and seals.

In- spect all gaskets and seals (such as lip seals) between the screen deck frames to be sure they’re soft and flexible and not damaged or loose: The better the condition and surface smoothness of the gaskets and seals, the tighter the sifter will be sealed. If one gasket or seal is damaged or loose, re- place all gaskets and seals on that deck frame and cement them with the adhesive designated in your sifter manual’s parts list.

When fitting gaskets on the deck frame, make sure that they butt together at the frame corners and are firmly cemented onto the frame.

Reassemble the screen deck stack.

Reverse the stack dis- assembly steps, being careful to replace the screen decks in proper order. Again, the screen decks should fit into podistorting the deck frames.

Once the screen decks are back on the sifter, reattach the flexible tubes at the sifter inlet and outlet, but don’t stretch them taut. Then tighten the nuts on all of the hold-down rods to the pressure specified by the sifter manufacturer.

Source: MaintainX (Community Member)