This video should give you all the information needed to swap out the belts on a WM-5 or related model. (WM-2, WM-R2)
Note: Upon reviewing the video i have realised I forgot to replace the cable for the play head in it's holder which was what caused me issues reassembling. Please make sure you put the cable back as operating it while loose could potentially cause damage or impaired functionality.
15 сен 2024