Tracker Off-Road 800SX Service Manual page 20

B. Slowly depress the brake pedal several times.
C. Install one end of a clear hose onto the RIGHT
REAR bleeder screw and direct the other end
into a container; then while holding slight pres-
sure on the brake pedal, open the bleeder screw
and watch for air bubbles. Close the bleeder
screw before releasing the brake pedal. Repeat
this procedure until no air bubbles are present.
MOD299
MOD300
NOTE: During the bleeding procedure, watch the

reservoir very closely to make sure there is always a
sufficient amount of brake fluid. When the level falls
below MIN, refill the reservoir before the bleeding
procedure is continued. Failure to maintain a suffi-
cient amount of fluid in the reservoir will result in air
in the system.
D. At this point, perform steps B and C on the
REAR LEFT bleeder screw; then move to the
FRONT RIGHT bleeder screw and follow the
same procedure. Finally, complete the procedure
on the FRONT LEFT bleeder screw.
MOD161
E. Repeat steps B and C until the brake pedal is
firm.
18
3. Carefully check the entire hydraulic brake system to
ensure all hose connections are tight, the bleed
screws are tight, the protective caps are installed, and
no leakage is present.
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.
CHECKING/REPLACING PADS
The clearance between the brake pads and brake discs is
adjusted automatically as the brake pads wear. The only
maintenance that is required is replacement of the brake
pads when they show excessive wear. Check the thick-
ness of each of the brake pads as follows.
1. Remove the wheel corresponding to the brake being
checked.
2. Measure the thickness of each brake pad.
MOD081A
3. If thickness of either brake pad friction material is
less than 0.5 mm (0.019 in.), the brake pads must be
replaced.
NOTE: The brake pads should be replaced as a set.

4. To replace the brake pads, use the following proce-
dure:
A. Remove the Torx head plug from the caliper;
FRONT
MOD512
CAUTION
then remove the cap screws securing the caliper
holder to the knuckle.