My lower spray arm started to wobble and is hitting the flat plastic water tube. Could it be the lower hub?
You will want to make sure that the hub is screwed to the spray arm. The hub should come up through the spray arm and screw to the spray arm. If it will not then check the threading on the hub and on the spray arm.
I do not know how to take off the Hub of the lower arm. The hub pn is 8268342. I thought you only had to unscrew it to take the hub off but I could not.
Answer Hello Salvador,
Hold the center piece and unscrew the spray arm. The top of the feed tube will unclip from the back and top for removal. Remove the water feed tube by turning it clockwise about 1/8 turn. The lower spray arm hub will then lift out.