yes you do use a spring plate, due to the fact of the amount of fricion the disc will undertake.
Are you replacing a whole clutch or just the clutch plates?
The outer diameter of the friction lining, the inner diameter of the friction lining, the coefficient of friction between the plates, the number of friction plates ( in this case 2), the surface pressure acting on the friction plates
If the clutch is operating normally, there is no need to replace clutch plates. If the clutch is slipping and cable or hydraulic operating method is working correctly, oil is of the correct grade and in good order & clutch springs are within manufacturers tolerances, the probable cause would be worn clutch plates. Measure both friction plates and steel plates to determine whether just friction plates can be replaced & dont forget to soak new friction plates in oil before fitting. Unless you know what you are doing and have the corect tools, I would suggest it is a job for a motorcycle dealer (such as ourselves - www.aprilia-merseyside.com)
Because the clutch is adjusted incorrectly. If allowed to slip for more than a few blocks the friction plates will glaze and the steel plates will warp from the heat, meaning they will need to be replaced, which is considerably more expensive than the factory service manual that contains the information needed to avoid costly mistakes such as this.
The pressure plate which forces the friction disc against the flywheel by means of spring plates. Pressing the clutch pedal down forces the pressure plate away from the friction disc and power transfer from engine to transmission is broken.
Primarily clutch friction plates perforated for cooling. In automatic transmissions and other wet clutches, the holes distribute oil. In both wet and dry clutches, the holes also allow wear particles to βescapeβ the friction surface and to get them out of the way.
there should be 6 clutch plates
The Escort uses a single disc, dry clutch with a metal marcel and its hub is cushioned with springs. The working surfaces are conventional friction material as found in most clutch plates of that type.
asbestos fibres were used in the making of friction linings such as brake pads, clutch plates etc. It is now banned in the UK
Source http://www.nightrider.com/biketech/hdclutch.htm Q: What causes my clutch to stick or drag? A: There is no single cause of a sticking clutch. Some more common reasons for a sticking clutch are:- Clutch controls are improperly adjusted. Clutch cable is collapsing.- Clutch spring tension is to tight, spring binding.- Too heavy an oil has been used in the clutch. A thick viscosity oil can cause the plates to stick, especially when cold.- Clutch oil is 'worn out' or burnt. The oil has been in the clutch to long, clutch plate wear is excessive causing slippage, or a driving style that slips the clutch. Changing the oil in a clutch often improves the situation.- Clutch plates are warped. Friction plates or metal plates may be warped.- Improper adjustment on primary drive chain/belt.Hope This Helps.
Removing and replacing the clutch on any motorcycle is an involved job. Your best bet is to purchase a book like the Haynes manual which will take you through removing the clutch basket and replacing the clutch plates. It will also instruct you on the correct set up and oil for the clutch. Correct set up of your clutch could save your life on any bike, so its best not to take chances by guessing.
Friction itself is a naturally occurring force but yes, tectonic plates do encounter friction.