6-8
KM519
3. Inspect all splines and hubs for excessive wear,
chips, cracks, or distortion.
KM539
KM540
4. Check that all bearings turn freely and smoothly
and are not worn, discolored, or missing dust
seals.
5. Inspect brake components for leaks, excessive
wear, or discoloration.
6. Check the axle shaft for runout using a dial indica-
tor and suitable supports. Maximum runout is 3
mm (0.12 in.).
NOTE: Axle runout is equal to 1/2 the total dial
indicator reading.
KM543
7. Check the final drive gear case assembly for
smooth gear operation. If gears are noisy or if
there is any catching or binding, the gear case
assembly must be replaced.
REPLACING SWING ARM SEALS
AND BEARINGS
To replace damaged or worn seals and bearings in the
swing arm assembly, use the following procedure.
1. Remove the dust seals from the swing arm pivot;
then using a slide hammer and bearing puller,
remove the pivot bearings.
KM521
2. Drive in new pivot bearings until fully seated; then
install new dust seals.
KM522
3. Remove the three cap screws, the dust plate, and
one O-ring from the left axle housing on the swing
arm; then from the right side, drive out the axle
bearing.
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Summary of Contents for ATV 250 Utility 2009
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