The bottom spray arm would not turn or fall off the stem assembly, so the dishes would not come clean like usual. The spray arm connects to the stem assembly via two plastic prongs that secure the spray arm. I removed the spray arm from the socket (no tool required) and observed the prongs had worn completely away. I grabbed the power screw driver and removed the assembly (3 screws). I placed the new assembly in place, secured the screws, and attached the spray arm. Finished.
The new arm came preassembled. I unscrewed the old arm base with my hand and screwed the new arm in place. The whole process took less than a minute. The new part was not made the same way. It was better than the original. Must have been a problem from the manufacturer. WORKS GREAT!!!
This part fixed problem. The original part seemed to have a defect. Was simple to fix, simply took off old piece still connected and hand tighten the new piece on, it took about 30 seconds.
Easiest repair ever. The spray arm itself usually really is not the problem, it usually is the clip or gasket that holds the spray arm on. It wears out. This part is perfect for it supplies a new spray arm, nut and gasket/clip. I think it wears out due to a build up on the arm that puts too much pressure on the clip/gasket. Remember when taking the nut off, if you are standing above the unit with your arm inside, you turn the nut clockwise while looking down. Good luck.
Used the screwdriver to pry the upper rack left side tine up and out. Slipped the new one into place and pressed hard to seat the tine. this process took all of about 20 seconds to do.
Unscrew old one and put new one in. Only issue we had was the new nut that screws the arm into place did not fit our machine. We had to take the old one off and use it instead.