Brake Service Procedures; Brake Bleeding / Fluid Change - Polaris RANGER 500 2018 Service Manual

BRAKE SERVICE PROCEDURES

BRAKE BLEEDING / FLUID CHANGE

NOTE
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.
1. Locate master cylinder reservoir under the hood.
Clean reservoir cover thoroughly.
2. Remove cover from reservoir.
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
reservoir.
Polaris DOT 4 Brake Fluid
(P/N 2872189)
5. Begin bleeding procedure with caliper furthest from
master cylinder.
9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual
© Copyright Polaris Industries Inc.
6. Install a box-end wrench on caliper bleeder screw
7. Attach a tight-fitting, clear hose to the bleeder fitting.
8. Place a small amount of fresh brake fluid into a
small, clear container and place the other end of
bleeder hose into the container.
9. Have an assistant slowly pump the brake pedal until
pressure builds and then hold.
10. Quickly open and close the bleed screw while
holding pressure on the brake pedal.
q
of
Do not release brake pedal before bleeder screw is
tight or air may be drawn into master cylinder.
11. Release brake pedal pressure. Check level of fluid in
reservoir and add if necessary (Figure 1-6).
12. Repeat Steps 9, 10, and 11 until brake pedal is firm
and no air can be seen moving through the clear
hose. Add fluid as necessary to maintain level in
reservoir.
Master Cylinder Fluid Level
Between the MIN and MAX line
Maintain at least 1/2"(1.27 cm) of brake fluid in the
reservoir to prevent air from entering the master
13. Tighten bleeder screw and remove bleeder hose.
Torque bleeder screw to specification.
47 in-lbs (5.3 Nm)
14. Repeat Steps 9 - 13 for the remaining brake calipers.
15. Install master cylinder reservoir cover.
BRAKE SYSTEM
NOTE
CAUTION
cylinder.
TORQUE
Bleeder Screw:
w
.
9
9.11