Page 199 - Manual Oficina Polaris Sportsman 570 2014 a 2016

ENGINE / COOLING SYSTEM

OIL PRESSURE REGULATOR (BYPASS) VALVE
INSPECTION
The oil pressure regulator (bypass) valve is located in the
stator cover.
1. Remove the retaining ring q securing the oil
pressure regulator piston in the stator cover.
2. Remove the washer w, spring e and piston r.
3. Replace the oil pressure regulator piston if it binds,
sticks or does not operate smoothly.
3
4. Thoroughly clean the piston and bore.
5. Coat the piston with clean engine oil and insert it into
the stator cover until fully seated.

BALANCE SHAFT REMOVAL / INSPECTION
1. Rotate crankshaft to align the timing marks as shown
below.
2. Install Crank-Balance Shaft Holder PA-51424 t onto
the balance shaft and crankshaft.

6. Install the spring, washer and retaining ring.

STATOR COVER OIL SEAL INSPECTION

Inspect the oil seal q whenever the stator cover is
removed from the engine. Remove and replace if wear is
found. 3. Remove the balance shaft nut t and washer r.

When installing a new seal, press seal in with lips facing
towards cover. Press until seal is fully seated in bore w. 4. Remove Crank-Balance Shaft Holder PA-51424.
5. Remove the balance drive gear.

9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 3.77
© Copyright Polaris Industries Inc.