3.80
9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
3.
Remove the screws (3) that secure the bearing
retainer(4) to the case.
WARNING
Do not reuse bearing retainer screws(3).
4.
Support the crankcase and drive, press, or extract
the bearings with a blind bearing remover.
Installation
NOTE:
To ease bearing installation, warm the
crankcase evenly with a heat gun or place in an oven
and heat to 220-250° F. Place bearings in clean
plastic wrap and set in a freezer for 10-20 minutes.
1. Clean all bearing bores and inspect for excessive
wear.
2. Lubricate all bearing bores with clean engine oil.
3. Fully seat the
new
balance shaft bearing until
bottomed in the bearing bore.
4. Install the retaining ring (2) for the crankshaft
bearings.
5. Fully seat the
new
outer PTO crankshaft bearing until
bottomed against the retaining ring.
6. Install the bearing spacer.
7. Press in the
new
inner PTO bearing until it is
bottomed against the bearing spacer.
8. Install the bearing retainer and torque the
new
fastener to specification.
WARNING
Do not reuse bearing retainer screws(3).
Bearing Retainer Fastener:
8 ft-lbs (11 Nm)
Apply Loctite® 272™
9. Press in the
new
PTO seal until it is flush with the
engine case.
ENGINE
