53
3. If thickness of either brake pad is
less than 1.0 mm (0.039 in.), take the
ATV to an authorized Arctic Cat
ATV dealer to have brake pads
replaced.
PR376B
4. Install the wheel; then using a criss-
cross pattern, tighten the wheel nuts
in 20 ft-lb increments to a final
torque of 40 ft-lb (steel wheel), 60
ft-lb (aluminum wheel w/black
nuts), or 80 ft-lb (aluminum wheel
w/chrome nuts).
Rear Foot Brake
The rear foot brake must be maintained
to be fully functional.
1. Check the brake fluid level in the
reservoir. The fluid level must be
maintained between the MAX and
MIN level marks. If the level in the
reservoir is low, add DOT 4 brake
fluid.
CD474A
NOTE: The brake fluid reservoir is
located under the seat.
2. Press the rear foot brake pedal sev-
eral times to check for firmness.
3. If the brake is not firm, the system
must be bled.
NOTE: Take the ATV to an autho-
rized Arctic Cat ATV dealer for this
service.
Gas/Vent Hoses
Make certain that the vent hose is
securely connected to the carburetor and
hose holder and the opposite end is
always open.
Protective Rubber
Boots
The protective boots should be inspected
periodically according to the Mainte-
nance Schedule.
Ball Joint Boots (Upper
and Lower/Right and Left)
CC791
1. Secure the ATV on a support stand
to elevate the front wheels.
2. Remove both front wheels.
3. Inspect the four ball joint boots for
cracks, tears, or perforations.
4. Check the ball joint for free-play by
grasping the steering knuckle and
turning it from side to side and up
and down.
5. If boot damage is present or ball
joint free-play seems excessive, con-
tact an authorized Arctic Cat ATV
dealer for service.
! WARNING
Be sure to inspect the rear foot
brake system before each use.
Always maintain brakes according
to the Maintenance Schedule.
Summary of Contents for ALTERRA 400
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