Cleaning aluminum checker plate in Australia can be done using the following steps:

1. Sweep or blow off any loose dirt or debris from the checker plate.
2. Mix a mild detergent, such as dish soap, with warm water in a bucket.
3. Using a soft-bristled brush, gently scrub the checker plate with the soapy water. Be sure to pay extra attention to any areas with heavy grime or stains.

1. Rinse the checker plate thoroughly with a hose or pressure washer to remove all traces of soap and dirt.
2. Dry the checker plate with a clean, dry cloth or allow it to air dry.
3. If there are any stubborn stains or marks that remain, you can use a mild abrasive cleaner or a paste made from baking soda and water. Apply the cleaner or paste to the stained area and scrub with a stiff-bristled brush. Rinse and dry thoroughly.

Note: It is important to avoid using harsh chemicals or abrasives on aluminum checker plate, as they can damage the surface and reduce its lifespan. Also, avoid using steel wool or wire brush on aluminum checker plate as they can leave scratches on the surface.