Checking The Rear Wheel; Checking Rotation; Wheel Axle; Wheel Rim - APRILIA RS 125 Euro 4 Service Manual

RS 125 - Tuono 125 - Euro 4

Checking the rear wheel

CHECK THE CONDITION OF ALL COMPONENTS AND OF THE COMPONENTS INDICATED AS
FOLLOWS IN PARTICULAR.
REAR WHEEL BEARINGS
Check the bearings installed on the wheel.

CHECKING ROTATION

•
Manually rotate the inner race of each bearing. The race must turn smoothly without im-
pediment or noise.
If one or both bearings do not fall within the control parameters:
•
Replace both wheel bearings.
ALWAYS REPLACE BOTH BEARINGS.
ALWAYS REPLACE THE BEARINGS WITH COMPONENTS OF THE SAME TYPE.
•
Check the radial and axial play.
Axial play: minimal axial play is permitted.
Radial: none.
If one or both bearings do not fall within the control parameters:
•
Replace both wheel bearings.

WHEEL AXLE

•
Use a dial gauge to measure the ec-
centricity of the wheel axle (1). Replace
the wheel axle (1) if the eccentricity
measured exceeds the specified limit.
Characteristic
Maximum eccentricity:
0.2 mm (0.0079 in)

WHEEL RIM

•
Use a dial gauge to check that the ra-
dial (A) and axial (B) eccentricity of the
wheel (2) do not exceed the specified
limits.
Excessive eccentricity is usually caused by worn
or damaged bearings. If eccentricity is not within
Suspensions
SUSP - 245