Brake Fluid Replacement & Bleeding - Polaris 2007 Two Stroke Service Manual

FINAL DRIVE/BRAKES
pressure will cause a surge of fluid through the small orifices of the brake system when the bleeder screw is opened and
introduce air into the system by means of cavitation.
• Small amounts of air can become trapped in the banjo bolt fittings at the master cylinder(s) and junction points of brake
lines. These fittings can be purged of air by following a standard bleeding procedure at these fittings (instead of the bleed
screw on caliper) if necessary to speed the bleeding process. This is usually only needed if system was completely drained
of fluid. Bleed each line connection, starting with the fitting closest to the master cylinder, working toward the caliper, and
ending with the bleed screw.
• Always torque banjo bolts and other brake system fittings to specified torque.
• Change fluid every 2 years, or when fluid is dark or contamination is suspected.
Brake Fluid Replacement & Bleeding
This procedure should be used to change fluid or bleed brakes during regular maintenance, or after complete brake service. Brake
fluid may damage painted or plastic surfaces. Take care not to spill, and wipe up any spills immediately. Cover parts to avoid damage.
1. Clean the reservoir cover.
2. Remove the two T-15 Torx™ screws from the cover.
3. Carefully remove the cover and diaphragm assembly from the reservoir.
4. Under the cover, inspect the vent slots under the bellows and remove any debris or blockage.
5. Bleed or replace the fluid by attaching a clear hose from the caliper bleeder fitting to a clean container. Be sure the hose fits
tightly on the bleeder fitting.
6. Pump the brake lever a few times and hold.
7. Slowly open the bleeder fitting and let the old fluid or air escape. You will feel the lever release as you let the fluid or air escape.
8. Pump the brake lever a few times and hold it again.
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