Question about Maytag MDB7100AWB Dishwasher

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Removal of spinner (it turns the spray arm) on top of pump housing.

I have removed every thing down to what I assume is covering the pump. The three bolts holding it in place have been removed. How do I remove the spinner that sits on top of the housing? It just turns around and I cannot see what holds it in place. There is a plastic cog that is in the middle but it won't unscrew. There are two round holes opposite each other on the spinners side as well as two square holes but I cannot see anything in the holes that would release the part. Once this spinner is removed the housing should lift off and hopefully I will be able to see the pump and what is causing the problem (which is a grinding noise at the end of the pump cycle). Thank you for any help you can give.

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If your talking about removing the bottom, main spray arm for the MDB7100AWB, in the middle there's the little hole with a plastic cog, button, whatever you want to call it that you can grab in pull up and spin, but this is just a spray jet and has nothing to do with removing the arm. But, around that hole in the middle is a disc that is somewhat flat and only sticks up about an 1/8 of an inch from the arm, this is what you need to unscrew to remove the arm. It almost looks like part of the arm (especially if it's caked with detergent), but it's actually the screw fastener that holds the arm on.  Just muscle that disc, turning counterclockwise, and it should unscrew, then you can remove the main arm unit.

For the top arm, it just pulls straight down and pops out.  You feel like it's about to break, but then it just pops out.  To put it back in, it just snaps in when you push it in.
Hope this helps.

Posted on May 31, 2008

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