Caliper Inspection; Caliper Assembly - Polaris 2012 RANGER RZR 570 INTL Service Manual

Caliper Inspection

1. Inspect ca liper b ody fo r n icks, scr atches or wear.
Measure bo re size an d comp are to sp ecifications.
Replace if damage is evide nt or if wor n be yond
service limit.
Rear Caliper Piston Bore I.D.
Standard: 1.191" (30.25 mm)
Service Limit: 1.192" (30.28 mm)
2. Inspect piston for nicks, scratches, wear or damage.
Measure dia meter an d r eplace if d amaged or wo rn
beyond service limit.
Rear Caliper Piston O.D.
Standard: 1.1875" (30.16 mm)
Service Limit: 1.186" (30.12 mm)
3. Inspect the br ake disc and pa ds as o utlined in th is
chapter.
= In. / mm.
= In. / mm.
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.

Caliper Assembly

1. Install new caliper seals (A) in the caliper body (B).
Be sure groove is clean and free of residue or brakes
may drag upon assembly.
D
2. Coat piston with clean Polaris DOT 4 Brake Fluid (PN
2872189). In stall piston (D) with a twisting motion
while pushing inward. Piston should slide in and out
of bore smoothly with light resistance.
3. Lubricate the mounting br acket pi ns w ith silicone
grease and install the rubber dust seal boots.
4. Compress the mounting bracket and make sure the
dust se als ar e fully seate d. In stall th e br ake p ads.
Clean the disc and pads with brake parts cleaner or
denatured alcohol to remove any dirt, oil or grease.
BRAKES
B
A
9
9.27