APRILIA TUONO 1000 Workshop Manual page 222

CYCLE PARTS
FINAL DRIVE UNIT BEARINGS
Check with the bearings fitted on the final drive unit.
ROTATION CHECK
•
Remove the left spacer (3).
•
Remove the right spacer (4).
• Manually turn the inner ring of each bearing. Rotation
must be continuous, smooth and silent.
If one or both bearings do not meet the specifications:
•
Replace both final drive unit bearings.
DANGER
Always replace both bearings.
Always replace bearings with bearings of the
same type.
RADIAL AND AXIAL PLAY CHECK
•
Check radial and axial play.
Axial play: minimum axial play is accepted.
Radial play: none.
If one or both bearings do not meet the specifications:
•
Replace both final drive unit bearings.
DANGER
Always replace both bearings.
Always replace bearings with bearings of the
same type.
VIBRATION DAMPER
• Check that the vibration damper seals (5) are not
damaged and/or excessively worn.
To perform the check:
•
Fit the complete final drive unit on the wheel (6).
• Manually turn the sprocket (7) in both directions and
check play between the vibration damper seals (5) and
the vibration damper holder (8).
If excessive play is noticed:
•
Replace all vibration damper seals (5).
DANGER
Always replace all vibration damper seals with
seals of the same type.
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TUONO 1000