Beta RR 4T - 250, Workshop Manual

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6 - Motore
Release 01 Date 09/2007
Checking the clutch for wear
Thrust head 1
Check the thrust head for signs of seizure and ensure that
it can slide freely.
Axial bearing 2
Ensure that the bearing is not damaged.
Push rod 3
Place the push rod on a flat surface and check its offset.
Clutch springs 4
Minimum length 41.5 mm (43 mm when new). If neces-
sary, replace all six springs.
Seven cork discs 5
Minimum allowable thickness 1.7 mm (1.8 mm when
new). The cork discs must be flat.
Four 1.0-mm middle discs 6
Ensure that the discs are flat and free from mechanical
damage. Replace as necessary.
Four 1,4-mm middle discs 6A
Ensure that the discs are flat and free from mechanical
damage. Replace as necessary.
Clutch hub 8
Check for damage and signs of wear.
Pressure plate 9
Check for signs of damage on contact surface A with the
steel plate.
Clutch drum 10
Check the wear of thrust surfaces B of the lined plates
and the clutch drum. If the combined recesses exceed 0.5
mm, replace the lined plates and the clutch drum.
Needle roller bearings 11
Check for signs of wear or damage.
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