Caliper Inspection - Polaris ACE 900 2017 Service Manual

BRAKE SYSTEM
5. 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.
6. Clean the caliper body
e
bracket with brake cleaner or alcohol.
Be sure to clean seal grooves in caliper body.
9.14
q w
, pistons , and retaining
NOTE

CALIPER INSPECTION

1. Inspect caliper body for nicks, scratches, pitting or
wear. Measure bore
specifications. Replace if damaged or worn beyond
service limit.
MEASUREMENT
Front Caliper Piston Bore I.D.:
Std: 1.190-1.191" (30.25-30.27 mm)
Service Limit: 1.193" (30.30 mm)
2. Inspect piston for nicks, scratches, pitting or wear.
Measure piston diameter and replace if damaged or
worn beyond service limit.
MEASUREMENT
Front Caliper Piston O.D.:
Std: 1.1860-1.1875" (30.12-30.16 mm)
Service Limit: 1.1858" (30.11 mm)
3. Inspect the brake disc and pads as outlined in this
chapter.
9929422 R02 - 2017-2019 ACE 900 Service Manual
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