Rear Brake Disc Service; Disc Runout; Disc Inspection - Polaris RANGER XP 900 2018-2019 Service Manual

BRAKE SYSTEM

REAR BRAKE DISC SERVICE

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 RunoutService Limit: 0.010" (0.254 mm)
9.30

DISC INSPECTION

1. Visually inspect disc for scoring, scratches or
gouges. Replace disc if any are evident.
2. Use a 0-1" micrometer and measure disc thickness
at 8 different points around perimeter of disc.
Replace disc if worn beyond service limit.
MEASUREMENT
Brake Disc Thickness:
Standard: 0.188" (4.78 mm)
Service Limit 0.170" (4.32 mm)
MEASUREMENT
Brake Disc Thickness Variance:
Service Limit: 0.002" (0.051 mm)
difference between measurements
9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
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