Cleaning And Inspecting - Arctic Cat ATV 300 Utility/DVX 300 2011 Service Manual

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7. Loosen the drive chain (see Periodic Maintenance);
then slip the chain off the sprocket and remove the
axle assembly from the right side.
8. Remove the cap screw from the rear brake caliper
holder; then remove the snap ring securing the cali-
per holder to the axle housing.
9. Remove the brake caliper holder and aligning collar.
Account for the O-ring.
10. Remove the four cap screws from the rear of the
swing arm assembly; then remove the rear axle hous-
ing from the right side of the swing arm.
11. Remove the snap ring securing the driven sprocket to
the axle; then remove the sprocket.

CLEANING AND INSPECTING

1. Inspect the sprocket teeth for wear. If they are worn
KM476A
as shown, replace the engine sprocket, rear sprocket,
and drive chain as a set.
2. Measure the rear axle runout as shown using V
KM481A
blocks and a dial indicator. If the axle runout exceeds
1.5 mm (0.06 in.), the axle must be replaced.
KM483
3. Inspect the dust seals for wear or damage. If any
defect is found, replace the dust seal.
4. Inspect the axle bearings by rotating them by hand. If
any roughness, binding, or excessive looseness is
found, replace the axle bearings.
 NOTE: If the axle bearings are replaced, replace the
dust seals with new ones. Always pack the bearings
with a good quality wheel bearing grease.
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KM477
ATV2185
KM480
85