Pto Side Crankcase Bearing Service - Polaris RANGER 500 2018 Service Manual

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3. Place the crankshaft in a truing stand or V-blocks

and measure the runout where indicated below with

a dial indicator.

Maximum Runout:

Inner (C) - 0.00118" (0.03 mm)

Outer (D) - 0.00590" (0.15 mm)

The MAG side crankshaft plain bearing is not

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.

9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual

ENGINE / COOLING SYSTEM

PTO SIDE CRANKCASE BEARING SERVICE

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!

Bearing Removal

1. Remove and discard the PTO side crankshaft seal

. Replace with new for assembly.

2. Remove the retaining ring

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