9940259 R02 - 2022
RZR
PRO R / PRO R 4 Service Manual
© Copyright Polaris Industries Inc.
10.27
3. Lubricate the mounting bracket pins
r
with silicone
grease and install the rubber dust seal boots
t
.
4. Compress the mounting bracket and make sure the
dust seals are fully seated. Install the brake pads.
Clean the disc and pads with brake parts cleaner or
denatured alcohol to remove any dirt, oil or grease.
REAR BRAKE DISC INSPECTION
1. Visually inspect disc for scoring, scratches, or
gouges. Replace disc if 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.
Brake Disc Thickness
.295 ± .008″(7.5 ± .2 mm)
.268″ (6.8 mm)
Brake Disc Thickness Variance:
Service Limit: 0.002″ (0.051 mm)
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:
.010″ (0.25 mm)
REAR BRAKE DISC REPLACEMENT
1. Dismount the wheel hub assembly from the vehicle
by pulling straight out.
2. Remove the rear caliper and brake disc.
3. Replace brake disc with a new one.
REAR BRAKE CALIPER / PAD
INSTALLATION
1. Install the rear caliper with new mounting bolts.
Torque mounting bolts
q
to specification.
TORQUE
Rear Caliper Mounting Bolts:
51 ft-lbs (70 Nm)
