Balance Shaft Removal / Inspection - Polaris RANGER ETX 2015 Owner's Manual

Table of Contents

ENGINE / COOLING SYSTEM

4. Separate crankcase by tapping with a soft faced

hammer in reinforced areas and lift MAG crankcase

off PTO case.

Never strike the engine mounts with a hammer.

BALANCE SHAFT REMOVAL / INSPECTION

1. Rotate crankshaft to align the timing marks as shown

9926806 R03 - 2015 - 2016 RANGER ETX / 570 2-SEAT 2015 - 2016 RANGER 570 CREW Service Manual

2. Pull upward on the balance shaft and remove it from

the crankcase.

3. Inspect drive gear for broken or damaged teeth.

4. Inspect bearing surfaces for scoring or signs of wear.

5. Inspect / replace the balance shaft bearings in both

Inspection / Removal" procedure in this chapter.

Due to extremely close tolerances and minimal wear,

counterbalance shaft ball 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 bore. The inner race should be firm with

minimal side to side movement and no detectable up

and down (radial) movement.

Table of Contents