Removing Arm Spray Lower Assembly, etc

We own a GE dishwasher, Model pdw7800n15ww. Never has worked well. Having lots of problems with the soap being washed out of the dispencer cup (door opens fine). Found food blocking the holes in the lower and middle spray arms. Cleaned both arms, now tring to remove the lower arm and the Nut Hub Fine Filter, etc parts to clean everything.

[COLOR=β€œRed”][SIZE=β€œ4”]DUPLICATE[/SIZE][/COLOR]

Please see the following
http://forum.appliancepartspros.com/dishwasher-repair/153499-removing-arm-spray-lower-assembly-etc.html