If your Maytag top load washer is not draining properly. In other words the washer fills properly, agitates properly, but is not removing the water from the washers tub.
You will need to check the following parts until you find out the part that needs to be replace to fix the washing machine.
Here I am going to give you a brief description of the parts you need to check, and below you will have the links to the pages with the videos that will show you how the repairs are done.
The water pump: A bad water pump could be the reason why your washer is not removing the water from the tub. It could have a worn out impeller, a frozen impeller to the center bearing in the pump. Also make sure that the belt is turning the pumps pulley at the right speed. Also there could be something stuck inside of the pump.
To check it out you will need to do the following. Disconnect the washer from the wall outlet. Use a bucket and a plastic cup to bail out any washer inside of the tub. After bailing out the water, you will need to remove the front panel to get access to the pump.
Obstructions: Items like small socks, curtain ties, and baby items of clothing could find their way into the tub of the washer and obstruct the flow of water during the drain cycle. To check for obstructions you will need to do the following.
Disconnect the washer from the wall outlet. Bail out any water from the tub. To bail the water you could use a bucket and plastic container to scoop the water. After removing the any water from the tub, put a couple towel on the floor to catch any water that may still in the pump.
Open the front panel and remove the tub to pump hose and check for obstructions. Then disconnect the pump to drain hose and check it out.
As you could see if any of these parts fails to work properly it could stop the washer from removing the water from the washers tub.