Hydraulic Brake Systems - Arctic Cat 2015 400 Service Manual

Hydraulic Brake Systems

CHECKING/BLEEDING
The hydraulic brake systems have been filled and bled at
the factory. To check and/or bleed a hydraulic brake sys-
tem, use the following procedure.
1. With the master cylinder in a level position, check the
fluid level in the reservoir. On the hand brake if the
level in the reservoir is adequate, the sight glass will
appear dark. If the level is low, the sight glass will
appear clear. On the auxiliary brake the level must be
between the MIN and MAX lines on the reservoir.
2. Compress the brake lever/pedal several times to
check for a firm brake. If the brake is not firm, the
system must be bled.
3. To bleed the brake system, use the following proce-
dure.
A. Remove the cover and fill the reservoir with DOT
4 Brake Fluid.
B. Install and secure the cover; then slowly compress
the brake lever/pedal several times.
C. Remove the protective cap, install one end of a
clear hose onto the REAR RIGHT bleeder screw,
and direct the other end into a container; then
while holding slight pressure on the brake
lever/pedal, open the bleeder screw and watch for
air bubbles. Close the bleeder screw before releas-
ing the brake lever/pedal. Repeat this procedure
until no air bubbles are present.
 NOTE: During the bleeding procedure, watch the
CF295A
appropriate reservoir very closely to make sure there
is always a sufficient amount of brake fluid. If low,
refill the reservoir before the bleeding procedure is
continued. Failure to maintain a sufficient amount of
fluid in the reservoir will result in air in the system.
D. Repeat step C until the brake lever/pedal is firm.
E. At this point, perform step B, C, and D on the
FRONT RIGHT bleeder screw; then move to the
FRONT LEFT bleeder screw and follow the same
procedure.
4. Carefully check the entire hydraulic brake system
that all hose connections are tight, the bleed screws
are tight, the protective caps are installed, and no
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leakage is present.
Brake fluid that has been drained or bled from the brake
system must NEVER be re-used or severe brake system
corrosion and damage may occur. Always discard used
brake fluid in an appropriate manner.
This hydraulic brake system is designed to use DOT 4
brake fluid only. If brake fluid must be added, care must
be taken as brake fluid is very corrosive to painted sur-
faces.
INSPECTING HOSES
Carefully inspect the hydraulic brake hoses for cracks or
other damage. If found, the brake hoses must be replaced.
CAUTION
CAUTION
AF637D
PR377C
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