Below is a description on the example of AT A5S 310Z.
1. Remove the plug (1) the ATF drain hole and bleed the ATF.
2. Turn out bolts and remove the pallet of a case.
3. Clean the oil pan and magnetic disk.
4. Insert magnetic discs into the oil pan (1 and 2). Check gasket (3) and if necessary, replace it.
5. Install rounded brackets at the corners of the oil pan.
6. At the end of the work, fill in the ATF (see chapter Vehicle settings and routine maintenance).