Debora D Milford , PA July 29, 2018 Appliance: Maytag Washer- Horizontal Axis MAH4000AWW Maytag Washer Mah4000aww: Maytag Neptune would not spin out. How to replace Belt And Isolator Kit. We replaced the door lock wax motor, the control board, a new belt as the machine was 20 years old. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours