149
9. Place a new crush washer on each side of the brake
hose fitting and install it on the caliper. Tighten to 20
ft-lb.
10. Fill the reservoir; then bleed the brake system (see
Periodic Maintenance/Tune-Up).
11. Install the wheel; then using a crisscross pattern,
tighten the wheel nuts in 20 ft-lb increments to a
final torque of 40 ft-lb (steel wheel), 60 ft-lb (alumi-
num wheel w/black nuts), or 80 ft-lb (aluminum
wheel w/chrome nuts).
12. Remove the vehicle from the support stand and ver-
ify brake operation.
Hydraulic Brake Caliper
(Rear)
REMOVING/DISASSEMBLING
1. Secure the vehicle on a support stand to elevate the
wheel; then remove the wheel.
2. Drain the brake fluid from the caliper, hose, and mas-
ter cylinder through the bleed screw by pumping the
brake pedal.
NOTE: Whenever brake components are removed,
disassembled, or repaired where brake fluid is
exposed to air, drain all fluid and replace with new
DOT 4 brake fluid from an unopened container.
Brake fluid readily absorbs moisture from the air sig-
nificantly lowering the boiling point. This increases
the chance of vapor lock reducing braking power and
increasing stopping distance.
3. Remove the brake hose from the caliper and close
the bleed screw; then remove the caliper.
4. Compress the caliper holder against the caliper
(opposite the O-ring side) and remove the outer
brake pad; then remove the inner brake pad.
PR237A
NOTE: If brake pads are to be returned to service,
do not allow brake fluid to contaminate them.
PR238
5. Remove the caliper holder from the caliper and dis-
card the O-ring.
PR239B
NOTE: The O-ring is used for shipping purposes
and provides no function in operation.
6. Cover the piston end of the housing with a shop
towel; then keeping fingers clear of piston travel,
apply compressed air to the fluid port to blow the
piston free of the housing. Account for two seal rings
in the housing.
! WARNING
Never use brake fluid from an open container or reuse
brake fluid. Moisture-contaminated brake fluid could
cause vapor build-up (expansion) during hard braking
resulting in greatly increased stopping distance or loss
of control leading to injury or death.
! WARNING
Arctic Cat recommends only authorized Arctic Cat Wild-
cat dealers perform hydraulic brake service. Failure to
properly repair brake systems can result in loss of con-
trol causing severe injury or death.
! WARNING
Never let brake fluid contact the eyes. Damage to the
eyes will occur. Always wear appropriate protective
safety goggles and latex gloves when handling brake
fluid.
CAUTION
Brake fluid is highly corrosive. Do not spill brake fluid
on any surface of the vehicle and do not reuse brake
fluid.