Arctic Cat M 8000, Service Manual

Page: 183 / 210

182
10. Remove the two screws securing the caliper halves.
Discard the seal.
PC219A
PC173
11. Remove the pistons (A) and O-rings (B); then dis-
card the O-rings.
PC220A
Cleaning and Inspecting
1. Inspect the brake pistons for gouges, cracks, pitting,
scuffing, or corrosion. If any of these conditions
exist, replace the piston.

NOTE: The inner and outer caliper housings are
not serviceable components. If either or both are
defective or damaged, the complete caliper assembly
must be replaced.
2. Clean the piston outer surface by using a soft
Scotch-Brite pad and clean brake fluid as a cleaner.
3. Inspect the piston bore of the inner and outer brake
calipers for gouges, cracks, pitting, scuffing, or cor-
rosion. If any of these conditions exist, replace the
caliper.
4. Clean the caliper inner wall surface using a soft
lint-free cloth and clean brake fluid.
5. Inspect the condition of the brake pads. Replace if
damaged or worn. The brake pad thickness must be
greater than 0.20 in. If the brake pad thickness is less
than specified, replacement of both pads is neces-
sary.
6. Inspect the brake hose for cracks and deterioration
and check the condition of the threaded connectors.
Assembling/Installing
1. Apply approved brake fluid to new O-rings; then
install the O-rings into the groove of each caliper
half.
2. In each caliper half, apply approved brake fluid to
the brake piston; then while twisting, install the pis-
ton with the dished side facing out.
PC201
 NOTE: To aid in installing the piston, make sure the
piston O-ring is properly seated in the groove of the
caliper housing.
3. Using a suitable press, install a new inner bearing
into the caliper housing until it is properly seated.
CAUTION
Do not use any sharp cleaning tool on the piston sur-
face or in the O-ring groove as it may cause damage.
CAUTION
Care must be taken not to allow any contaminants into
the fluid passages of the calipers or brake system mal-
function may occur.
CAUTION
Never reuse piston O-rings. Always install new O-rings
when installing pistons in the brake caliper.
CAUTION
When installing a bearing, always press on the outer
race of the bearing.