Brake Bleeding / Fluid Change - Polaris ACE 900 2017 Service Manual

BRAKE SYSTEM

BRAKE BLEEDING / FLUID CHANGE

NOTICE
When bleeding the brakes or replacing the fluid always
start with the furthest caliper from the master cylinder.
CAUTION
Always wear safety glasses.
CAUTION
Brake fluid will damage finished surfaces. Do not allow
brake fluid to come in contact with finished surfaces.
This procedure should be used to change fluid or bleed
brakes during regular maintenance.
1. Access the master cylinder reservoir by removing the
front storage bin
compartment.
2. Clean master cylinder reservoir cover
and remove the cover.
3. If changing fluid, remove old fluid from reservoir with
a Mity Vac™ pump or similar tool.
Mity Vac™:
PN 2870975
4. Add brake fluid to the indicated MAX level of
reservoir.
Polaris DOT 4 Brake Fluid:
PN 2872189
5. Begin bleeding procedure with the caliper that is
farthest from the master cylinder. Install a box end
wrench on caliper bleeder screw. Attach a clean,
clear hose to fitting and place the other end in a clean
container. Be sure the hose fits tightly on fitting.
9.8
in the front rack storage
q
thoroughly
6. Have an assistant slowly pump foot pedal until
pressure builds and holds.
7. Hold brake pedal on to maintain pedal pressure, and
open bleeder screw. Close bleeder screw and release
foot pedal.
NOTICE
Do not release foot pedal before bleeder screw is tight
or air may be drawn into master cylinder.
8. Repeat procedure until clean fluid appears in bleeder
hose and all air has been purged. Add fluid as
necessary to maintain level in reservoir.
CAUTION
Maintain at least 1/2"(1.27 cm) of brake fluid in the
reservoir to prevent air from entering the master
cylinder.
9. Tighten bleeder screw securely and remove bleeder
hose. Torque bleeder screw to 47 in-lbs (5.3 Nm).
10. Repeat procedure Steps 5 - 8 for the remaining
calipers.
11. Add brake fluid to MAX level inside reservoir.
Master Cylinder Fluid Level:
Between the MIN and MAX line shown on the reservoir.
12. Install master cylinder reservoir cover.
13. Field test machine at low speed before putting into
service. Check for proper braking action and pedal
reserve. With pedal firmly applied, pedal reserve
should be no less than 1/2"(1.3 cm).
14. Check brake system for fluid leaks.
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.