Front Brake Disc; Disc Inspection - Polaris RANGER RZR 170 Service Manual

9. Install wheel and torque wheel nuts.
Front Wheel Nut:
27 ft-lbs (37 Nm)
10. Perform the Brake Burnishing Procedure to maximize
pad service life and minimize noise. See "Brake
Burnishing Procedure" on page 6.21.

FRONT BRAKE DISC

Disc Inspection

1. Visually inspect disc for scoring, scratches, or
gouges. If any deep scratches are evident, replace
the disc.
2. Use a 0-1" (0-25mm) micrometer to measure disc
thickness at multiple locations around pad contact
surface. Replace disc if worn beyond service limit at
any measurement point.
X
X
Brake Disc Thickness
Service Limit: .170" (4.32 mm)
Brake Disc Thickness Variance
Service Limit .002" (.051 mm)
difference between measurements
= T
X
X
X
X
X
X
9923983 - 2012-2013 RZR 170 Service Manual
© Copyright 2012 Polaris Sales Inc.
3. 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 service
limit.
Brake Disc Runout
Service Limit .010" (.254 mm)
BRAKES
6
6.15