9926813 R04 - 2013-2016
RZR
570 Service Manual
© Copyright Polaris Industries Inc.
9.35
REAR BRAKE DISC
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 the disc
thickness at eight different points around the pad
contact surface. Replace disc if worn beyond service
limit.
Brake Disc Thickness
New: .188″ (4.78 mm)
Service Limit: .170″ (4.32 mm)
Brake Disc Thickness Variance
Service Limit .002″ (.051 mm)
difference between measurements
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
specifications.
Brake Disc Runout
Service Limit .010″ (.254 mm)
DISC REPLACEMENT
1.
Remove rear brake caliper (see Chapter 9 – REAR
CALIPER SERVICE, page 9.31).
2.
Remove wheel hub cotter pin, castle nut and
washers.
3.
Remove the hub assembly from the vehicle and
remove the four bolts retaining the disc to the hub.
4.
Clean the wheel hub mating surface and install new
disc on wheel hub.
5.
Install
new
bolts and torque to specification.
TORQUE
Disc Bolts:
30 ft-lbs (41 Nm)
CAUTION
Always use new brake disc mounting bolts. The bolts
have a pre-applied locking agent which is destroyed
upon removal.
