Brake System Bleeding - Polaris 850 PRO-RMK 155 2020 Manual

FINAL DRIVE / BRAKE SYSTEMS
CALIPER / PAD COMPONENTS
Brake pads must be replaced when the brake pad
material becomes thinner than the backing plate
(approximately 1/16 inch or 1.5 mm). A kit is available for
replacing brake pads.
Brake failure during operation can result in serious
injury or death. Properly functioning brakes are vital to
your safety. Be sure the brake pads do not drag on the
disc and that brake lever travel is not excessive. Always
replace brake pads when the brake pad material
becomes thinner than the backing plate (approximately
1/16 inch or 1.5 mm).
q
Brake Caliper
w
Brake Disc
6.36
WARNING
e
Brake Pad

BRAKE SYSTEM BLEEDING

Operating the vehicle with a spongy brake lever can
result in loss of brakes, which could cause an accident
and lead to serious injury or death. Never operate the
vehicle with a spongy-feeling brake lever.
Hot exhaust system parts can cause burns. Allow
adequate time for the exhaust system to cool. Never
perform this procedure with the engine running.
During the bleeding procedure, keep the brake handle as
level as possible. The reservoir must be in this position to
minimize the possibility of air entering the system
through the reservoir vent.
1. Remove the brake master cylinder reservoir cover
and gasket.
2. Fill the master cylinder reservoir to between the MIN
and MAX marks. Reinstall the gasket and cover.
3. Slip a rubber tube over the ball of the bleeder valve
and direct the flow of fluid into an approved container.
4. Squeeze the brake lever a full stroke. Then unscrew
the bleeder valve 3/4-turn to release air.
5. Close the bleeder valve and release the brake lever.
6. Repeat steps 4 and 5 until fluid flows from the bleeder
valve in a solid stream free of air bubbles.
Overfilling the master cylinder leaves no room for fluid
expansion and may cause the brakes to lock, resulting
in serious injury or death. Always add brake fluid to the
fill line as recommended.
7. After bleeding is complete, refill the reservoir to the
proper level.
8. Reinstall the gasket and cover. Torque cover
fasteners to specification.
Brake Reservoir Cover Fasteners:
6 - 8 in-lbs (0.7 - 0.9 Nm)
9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
WARNING
CAUTION
WARNING
TORQUE
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