POP YOUR COLLAR
6WITH the gears out of the way, you’ll notice a circlip inside the housing. Remove the circlip to gain access to the free-spool collar. This locks into the housing by turning the free-spool lever. When the lever is disengaged the collar is allowed to spin, which lets the planetary gears spin despite the input shaft from the motor being locked solid.
Remove the free-spool collar and inspect for any wear or damage inside the housing. These items are mass-produced and aren’t perfect, so a small amount of metal-on-metal contact can cause the free-spool collar to jam.
Once the internals are removed, sit down with a bucket, a toothbrush and degreaser. You’ll want all the old grease removed, as some greases can react with each other and either break down completely or form a thick paste.