Mag Side Crankcase Bearing Service; Oil Pickup Assembly Inspection - Polaris RANGER 500 2018 Service Manual

MAG SIDE CRANKCASE BEARING SERVICE

Bearing Removal
1. Support the crankcase and drive, press, or extract
the balance shaft bearing
remover.
IMPORTANT
The MAG side crankshaft plain bearing
serviceable. Crankcase replacement is required if the
bearing is damaged or has excessive wear. The
crankshaft is reusable if it meets specifications and
MAG side bearing surface is not groved, pitted,
damaged or excessively worn.
Due to extremely close tolerances and minimal wear,
the bearings must be inspected visually, and by feel.
Look for signs of discoloration, scoring or galling. Turn
the inner race of each bearing. The bearings should
turn smoothly and quietly. The outer race of each
bearing should fit tightly in the crankcase. The inner
race should be firm with minimal side to side movement
and no detectable up and down movement.
Bearings are stressed during the removal process
and must not be re-used!
Installation
2. Clean all bearing bores and inspect for excessive
wear.
3. Lubricate all bearing bores with clean engine oil.
4. Fully seat the new balance shaft bearing until
bottomed in the bearing bore.
9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual
© Copyright Polaris Industries Inc.

OIL PICKUP ASSEMBLY INSPECTION

The oil pickup assembly is located inside of the oil pan.
w
with a blind bearing
q
is not
1. Remove fastener
2. Pull and twist to remove the oil pickup assembly from
3. Inspect the assembly for cracks and excessive wear.
4. Inspect o-ring condition
5. Thoroughly clean the pickup assembly.
6. Press the pickup assembly into the crankcase until
7. Install fastener that retains the oil pickup; torque to
ENGINE / COOLING SYSTEM
q
that retains oil pickup.
the crankcase.
Replace if necessary.
w
and replace if necessary
fully seated in bore.
specification.
WARNING
Do Not Exceed Torque Value.
TORQUE
Oil Pickup:
59.75 in-lbs (6.75 Nm )
3
3.197