Replacing plate
Unscrew the black plastic nut, note it has a left hand thread so unscrews clockwise.
Remove the shaft and fit it into new plate.
Ensure the pip on the plate locates into the hole in the shaft.
Tighten the nut securely.
Damage to the plate Velcro type hook surface.
Damage to the plate is rare if the tool is used correctly
The usual cause for discs not attaching firmly to the plate is because of previously using the sander without attaching a disc which permanently damages the hooks on the plate.
A less obvious cause is the false economy of using cheaper quality discs which can generate heat. The heat passes through the disc and if it gets hot enough it can melt the tips of the hooks. A similar heating effect can occur if excessive pressure is applied during use.
Catching the edge of the sander against protruding objects like nails can slice the rubber under the surface.
Old version
The original Flexidisc had a different shaft design with two identical steel nuts and no recess for the plate pip (more details). These are a minimum of 20 years old so replacements are not available.
As a special bonus if you return at least one of the two old style nuts with your order for a new unit we will give you a free mini plate, normally £4.50, as we occasionally get asked for spare old style nuts.
How it goes back together
Locate plate pip into The way we hold it when tightening nut Ensure nut is tight
hole in shaft Note nut has a left hand thread