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

BRAKE SYSTEM

FRONT BRAKE DISC SERVICE

DISC RUNOUT

1. Mount dial indicator as shown. Slowly rotate the disc
and read total runout on the dial indicator. Replace
disc if runout exceeds specification.
MEASUREMENT
Brake Disc Runout:
Service Limit:
0.010" (0.254 mm)
9.20

DISC INSPECTION

1. Visually inspect disc for scoring, scratches or
gouges. Replace the disc if any deep scratches are
evident.
2. Use a 0-1" micrometer and measure disc thickness
at eight different points around the pad contact
surface. 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
© Copyright Polaris Industries Inc.