To again reference Wally Plumley, “Remove the heat source. Continue to rotate fan and clutch, and drip the oil (Toyota silicone oil, part number 08816-03001-get (2) each) into the grommet (fill) hole. The combination of cooling and rotation will pull the oil in and distribute it to the outer edges. When oil stops going into the hole, repeat the cycle of heating and cooling.”
Once the oil is in, I put all the parts back together. . .
. . . making sure the bimetal strip is right side up. On mine it was easy since my strip has watermark like markings on the exposed side (right side up). Time to put it all back into the car in reverse order I removed it.