141
3. Install the hub assembly onto the shaft.
PR290
4. Secure the hub assembly with the nut. Tighten only
until snug.
5. Secure the brake caliper to the knuckle with new
“patch-lock” cap screws. Tighten the auxiliary cali-
per to 20 ft-lb. Tighten the hydraulic caliper to 20 ft-
lb.
PR243A
6. Tighten the hub nut (from step 4) to 200 ft-lb; then
install and spread a new cotter pin making sure each
side of the pin is flush to the hub nut.
CD008
7. Install the wheel and tighten to 45 ft-lb (steel wheels)
or 80 ft-lb (aluminum wheels).
8. Remove the ATV from the support stand.
Hydraulic Brake Caliper
REMOVING/DISASSEMBLING
1. Secure the ATV 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 lever/pedal.
PR235
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 signifi-
cantly 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.
NOTE: If brake pads are to be returned to service,
do not allow brake fluid to contaminate them.
! WARNING
Arctic Cat recommends that only authorized Arctic Cat
ATV dealers perform hydraulic brake service. Failure to
properly repair brake systems can result in loss of con-
trol causing severe injury or death.
! WARNING
Make sure the ATV is solidly supported on the support
stand to avoid injury.
! WARNING
Never let brake fluid contact the eyes. Damage to the eyes
will occur. Always wear appropriate protective safety gog-
gles and latex gloves when handling brake fluid.
CAUTION
Brake fluid is highly corrosive. Do not spill brake fluid
on any surface of the ATV and do not reuse brake fluid.
