Installation & Technical Information
The information contained in this section covers the relevant
technical and installation details for the range of cover
assemblies. This information includes:
- Mounting Holes:
- Dowel Holes:
- Mounting Hole / Dowel Hole Position:
- Diaphragm Spring:
- Release Plate:
- Clamp Load:
- Driven Plate Thickness:
- Torque Capacity:
- Maximum Rotational Speed:
- Maximum Release Travel:
- Release Bearing Type:
It is important that the correct type of release bearing is used for each cover assembly configuration. If a release plate is fitted a carbon thrust bearing should be used. If a release plate is not fitted and the diaphragm spring has straight fingers then a round nose ball type bearing should be used. If a release plate is not fitted and the diaphragm spring has curved fingers then a flat faced ball type bearing should be used.
The maximum recommended travel for the release bearing to prevent the diaphragm spring being over stroked. The maximum recommended rotational speed for each cover assembly. Given in rpm. The torque capacity for the clutch will vary depending upon which type of driven plate is to be used. The table gives the figure for all the various types of plate that can be run with the particular cover assembly. Given in Lbs / Ft and NM. Two thicknesses are given, the ‘new clamped’ thickness and the ‘minimum worn’ thickness. ‘New clamped’ is the thickness of the driven plate when first installed but with the plate in the clamped position. The ‘minimum worn’ figure is derived from the clamp load characteristics of each individual cover assembly, and can be used as a guide to the life of the driven plate. Whilst the driven plate thickness is between these two figures the clamp load stated will be within specification. When the thickness of the driven plate drops below the minimum worn figure the clamp load will be reduced which may result in clutch ‘slip’. The amount of clamping force exerted by the diaphragm spring (identified by colour on spring fingers). Given in Lbs and Nm Informs you if a release plate is fitted to the diaphragm spring fingers.The colour identifies the spring strength whilst the ‘design’ details the finger form, straight or curved (curly).The dimension from the flywheel face to the diaphragm spring fingers or to the top face of a release plate if fitted.
The angular dimension between any given mounting hole and a dowel hole, provided that they are both equi-spaced on their relevant P.C.D.Number of, diameter, pitch circle diameter and spacing.