9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
2.39
BRAKE FLUID
WARNING
Do not over fill the master cylinder. Fluid expansion
could cause brakes to lock, resulting in serious injury or
death. Once a bottle of brake fluid is opened, use what
is necessary and discard the rest. Do not store or use a
partial bottle of brake fluid. Brake fluid is hygroscopic,
meaning it rapidly absorbs moisture from the air. This
causes the boiling temperature of the brake fluid to
drop, leading to early brake fade and the possibility of
serious injury
Inspect the reservoir to be sure it contains the correct
amount of fluid. Use only Polaris DOT 4 high
temperature brake fluid. Change fluid every 2 years or
whenever the fluid is dark or contamination is suspected.
NOTICE
A low brake fluid level can be indicated through the
sight glass on the cover. If the fluid is low this sight
glass will glow a brighter. color.
BRAKE SYSTEM BLEEDING
WARNING
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.
CAUTION
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.
WARNING
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.
TORQUE
Brake Reservoir Cover Fasteners:
11 - 13 in-lbs (1.2 - 1.4 Nm)
Содержание 850 PRO-RMK 155 2.6" QD 2021
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