BRAKES
9.20
Rear Caliper Piston Bore I.D.
Std. 1.2550-1.2540² (31.877-31.852 mm)
Service Limit 1.256² (31.902 mm)
REAR CALIPER
ASSEMBLY/INSTALLA
TION
1. Install new O-rings in the piston hole of the caliper
body. Be sure grooves are clean and free of
residue or brakes may drag.
Piston
Seals
Caliper Body
2. Coat piston with clean DOT 3 Brake Fluid (PN
2870990) or DOT 4 Brake Fluid. Install piston
with a twisting motion while pushing inward.
Piston should slide in and out of bore smoothly,
with light resistance.
3. Install two new O-rings in the plunger hole of the
caliper assembly. Be sure grooves are clean and
free of residue.
4. Lubricate the mounting bracket pins with Polaris
Premium All Season Grease, and install the
rubber dust seal boots.
Polaris Premium All Season Grease
(PN 2871423)
5. Compress the mounting bracket and make sure
the dust seals are fully seated. Install the pads as
shown on Page 9.19. Clean the disc and pads
with brake parts cleaner or denatured alcohol to
remove any dirt, oil or grease.
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