How to replace latch handle and assembly

Dishwasher Repair
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1

How do you go about changing the latch handle and latch assembly of the above maytag dishwasher?

2

Here are your parts
Replacement parts for MAYTAG MDB9150AWB | AppliancePartsPros.com

Here is a service manual, although it is not for your unit the latches look the same. See page 5-23.
http://www.servicematters.com/maytag_library/docs/16021814.pdf