Table of Contents
REAR BRAKE DISC
DISC RUNOUT
1. Mount a dial indicator and measure disc runout.
Slowly rotate the disc and read total runout on the
dial indicator. Replace the disc if runout exceeds
specification.
MEASUREMENT
Brake Disc Runout
Service Limit .010" (.254 mm)
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
BRAKE DISC INSPECTION
1. Check the surface condition of the brake discs.
2. Measure the thickness of the front and rear brake
discs.
3. The disc(s) should be replaced if thickness is less
than the specified service limit
REF
PART
q
Front Disc
Rear Disc
w
WARNING
Do not apply WD-40 or any petroleum product to brake
discs. These types of products are flammable and may
also reduce the friction between the brake pad and
caliper.
BRAKE SYSTEM
SERVICE LIMIT
See the specifications
at the beginning of
the Brake System
chapter.
10
10.33
Chapters
Table of Contents
Troubleshooting
