Page 413 - Manual Oficina Polaris RS1 2018 e 2019

BRAKE SYSTEM

CALIPER INSPECTION CALIPER ASSEMBLY
1. Inspect caliper body for nicks, scratches, pitting or 1. Install new O-rings w in the caliper body. Be sure the
wear. Measure bore size and compare to grooves q are clean and free of residue or brakes
specifications. Replace if damaged or worn beyond may drag upon assembly.
service limit.

2. Coat pistons with clean Polaris DOT 4 Brake Fluid.
Install pistons with a twisting motion while pushing
MEASUREMENT inward. Piston should slide in and out of bore
smoothly, with light resistance.
Front Caliper Piston Bore I.D.:
Std: 1.373” (34.87 mm) 3. Lubricate the mounting bracket pins e with silicone
Service Limit: 1.375” (34.93 mm) grease and install the rubber dust seal boots.

2. Inspect piston for nicks, scratches, pitting or wear.
Measure piston diameter and replace if damaged or
worn beyond service limit.

9

4. Compress the mounting bracket and make sure the
dust seal boots 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.
MEASUREMENT
Front Caliper Piston O.D.:
Std: 1.370” (34.80 mm)
Service Limit: 1.368” (34.75 mm)

3. Inspect the brake disc and pads as outlined in this
chapter.

9928689 - 2018 RZR RS1 Service Manual 9.21
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