If an error occurs usually quickly eroded surface of the canvas and the power to influence. That is because the outer ring shapes different clutch plates, to grind at risk when the clutch work canvass.
It can be seen that the outer ring plate slightly rounded sides, while the other side is also more sharply angled. If there is a mounting plate upside down or any structure.
Parts and sharp elbows easily trim the canvas surface. Especially if part of the deal and when the clutch is in free position. No doubt among the rotating plate coupling also participate to erode.
In order not extravagant coupling, following instructions on how to attach the lining and clutch plates properly. Mounting plate arrangement direction, wants her all into or out could have been. Be it baseball, part of the elbow and should not be sharp or round face each other.
For example, the order of the first installation, put the clutch lining. Then followed the arrangement of the outer circumference of the plate and a sharp elbow into him. Please do the same until all the devices had been re-arranged as usual.