To remove the panel handles from your scooter, undo the bolt on the
UNDERSIDE of the handle on the exterior of the panel. Underneath it
should be a star washer.
With the bolt removed, slip off the handle and then remove the roller mechanism from the panel from the inside.
The roller mechanism. With the panel handle off, you can pull this section out.
Under each panel handle, on both sides of the scooter, you will see a flat, spacer washer.
If your rollers are damaged, you may need to replace them either as a complete unit or by grinding off the retaining pin and replacing just the roller. All parts need to be cleaned and zinc plated, with the exception of the plastic roller and the handle, which should be polished to a high shine.
All replacement parts are readily available.