Polaris 2012 RANGER RZR 570 INTL User Manual

3.80
ENGINE / COOLING SYSTEM
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
Installation
NOTE: To ea se bea ring installation, warm t he
c
rankcase evenly with a heat gun or place in an oven
and he at to 220 -250
° F. Pla ce bea rings in clean
plastic wrap and set in a freezer for 10-20 minutes.
1. Clean a ll b earing bo res and in spect for excessi ve
wear.
2. Lubricate all bearing bores with clean engine oil.
3. Fully se at the ne
w ba lance shaft be aring un til
bottomed in the bearing bore.
4. Install the retaining ring for the crankshaft bearings.
5. Fully seat the ne
w outer PTO crankshaft bearing until
bottomed against the retaining ring.
6. Install the bearing spacer.
7. Press in the ne
w inner PTO bearing until it is bottomed
against the bearing spacer.
8. Apply Loctite® 272™ to the (2) bearing retainer bolts.
9. Install the bearing retainer and torque the fastener to
spec
ification.
MAG Side Crankcase Bearing Service
Bearing Removal
1. Support the cr ankcase a nd dr ive, pr ess, or extra ct
th
e bala nce shaft bea ring with a blind bea ring
remover.
IMPORTANT: The MAG side cran
kshaft plain bearing
is not ser viceable. Crank case rep lacement is
required if the bearing is damaged or has excessive
wear. The c rankshaft is re usable if it me ets
specifications and M AG side b earing surf ace is not
groved, pitted, damaged or excessively worn.
NOTE: Due to e xtremely cl ose to lerances an d
minimal
wear, t he be arings must b e inspected
visually, and by feel. Look for signs of discoloration,
scoring or g alling. T urn t he inner r ace of eac h
bearing. The be arings sho uld tur n smoot hly a nd
quietly. Th e out er ra ce of ea ch be aring should f it
tightly in the cra nkcase. The inn er ra ce s hould b e
firm wit h min imal s ide t o side move ment and no
detectable up and down movement.
NOTE: Bearings are st ressed during the remo val
proc
ess and must not be re-used!
= T
Bearing Retainer Fastener:
8 ft. lbs. (11 Nm)
Apply Loctite® 272™
Balance
Non Serviceable
MAG Side Plain Bearing
Shaft
Bearing

Polaris 2012 RANGER RZR 570 INTL Specifications

General

Brand	Polaris
Model	2012 RANGER RZR 570 INTL
Category	Offroad Vehicle
Language	English