The SWCG cell should only be cleaned if needed. Inspect the cell plates and see if you see any scale buildup on them. If you google "dirty salt cell" you will find pictures of what a dirty cell looks like. If it's not dirty, then it doesn't need cleaning.

If it does need cleaning, refer to your owners manual for the recommended method for your model (I'm not familiar with that model).

With mine (Goldline Aqua Rite with T-15 cell) I rarely need to do anything but hose it out at fall closing. Of course I keep tight control of water chem balance which helps greatly.