Chosen Solution
When I stepped on clutch/brake , mower stopped but when I let off brake the mower wouldn’t move. Upon inspection I saw the smaller pulley separated from the pulley bearing. I can’t seem to find any diagrams or parts list for this model (38624X12B) anywhere. Any help would be appreciated
chuck, take a look on here and see if this will help you. It has all the diagrams and partslist. Let us know what you find, and may be give us a better description of where the pulley is located. Hope this helps, good luck.