Checking Front Wheel Parts - APRILIA LEONARDO 250 Workshop Manual

CYCLE PARTS
7.5.4.

CHECKING FRONT WHEEL PARTS

WARNING
Check the integrity of all the components and
in particular those indicated below.
Bearings
•
Manually rotate the inner ring (1), which should rotate
without jamming and/or noise. There should be no ax-
ial slacks. The bearings that show signs of the mal-
functions mentioned above must be changed.
WARNING
Apply grease on the balls (or rollers) on both
sides of each bearing, see 1.7 (LUBRICANT
CHART). This operation is not necessary if the
bearing is self-lubricating.
Wheel pin
•
Check the eccentricity of the pin by means of a com-
parator. If the eccentricity exceeds the limit value,
change the pin.
WARNING
Apply grease on the pin (only in the area of
contact with the bearings), see 1.7 (LUBRI-
CANT CHART).
Rim
•
Using a comparator, make sure that the radial and ax-
ial eccentricity of the rim do not exceed the limit value.
Excessive eccentricity is usually caused by worn or
damaged bearings. If after changing the bearings the
value still exceeds the indicated limit, change the rim.
Speedometer control
•
Make sure that there are no evident signs of damage
and/or excessive wear.
WARNING
Apply grease on the inner side, see 1.7 (LU-
BRICANT CHART).
Tyre
Check the conditions of the tyre, see 2.21.2 (TYRES).
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