2005-2007 Polaris Ranger 500 service manual, Page 278Get this manual
BRAKES 4Remove piston (D) and square O-rings (E) from the caliper body (F)See Figure 9.152Inspect piston for nicks, scratches, wear or damageMeasure diameter and replace if damaged or worn beyond service limit
Clean the caliper body, piston, and retaining bracket with brake cleaner or alcoholNOTE: Be sure to clean seal grooves in caliper bodyFront Caliper Piston O.DStd1.4985-1.5000" (38.06238.10 mm) Service Limit 1.4980" (38.049 mm)
3Inspect the brake disc and pads as outlined for brake pad replacement in this chapter
Caliper Inspection
1Inspect caliper body for nicks, scratches or wearMeasure bore size and compare to specificationsReplace if damage is evident or if worn beyond service limit