Whirlpool ADP 5540 Arm

I have a Whirlpool ADP 5540.

Problem the bottom arm is hitting the back of washer the part that takes the water to the top arm.

I have take the arm off to clean but seems to not make any difference. When I turn it I do notice it does wobble. As it makes the water carrier part pop out of the part where the mesh filter is in the bottom.

Any Ideas.

I hope it makes sense what I have said

Thanks.

The pipe running down the back that plugs in behind the mesh filter is becoming disloged and that's why the bottom spray arm is hitting it.
If you post your model number and the 12 digit 85 number I'll get the part number of the part required to sort the problem.

Thanks for that the number is

ADP 5540 WH

854254053721

service: 330414008585.

Thanks