10.22
9850043 R01 - 2017-2021
RANGER
500 / 570 Service Manual
© Copyright Polaris Inc.
3.
Remove mounting bracket, pin assembly and dust
boot.
4.
Thoroughly
clean
the
brake
caliper
before
disassembly and prepare a clean work area to
disassemble the caliper.
5.
While holding the caliper and covering the pistons
with a shop towel, carefully apply compressed air to
the brake line inlet to force the pistons out from the
caliper.
CAUTION
Use caution and always wear safety glasses when
working with compressed air.
NOTICE
Do not remove the caliper pistons with a pliers. The
piston sealing surfaces will become damaged if a pliers
is used.
6.
Once the pistons are removed, use a pick to carefully
remove the square O-rings from the caliper. O-rings
should be replaced during caliper service.
7.
Clean the caliper body, piston, and retaining bracket
with brake cleaner or alcohol.
NOTICE
Be sure to clean seal grooves in caliper body.
FRONT CALIPER INSPECTION - CREW
1.
Inspect caliper body for nicks, scratches, pitting or
wear.
Measure
bore
size
and
compare
to
specifications. Replace if damaged or worn beyond
service limit.
MEASUREMENT
Caliper Piston Bore I.D.:
Std: 1.373” (34.87 mm)
Service Limit: 1.375” (34.93 mm)
Summary of Contents for RANGER 500 2017
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