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9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
Coolant Flow
Cooling System Pressure Test
1. Remove the center cover under the front rack.
WARNING
Never remove pressure cap when engine is warm or
hot. The cooling system is under pressure and serious
burns may result.
Allow the engine to cool before servicing.
2. Remove pressure cap and pressure test the cooling
system using a commercially available pressure
tester.
3. The system must maintain 10 psi for five minutes or
longer. If pressure loss is evident within five minutes,
check the filler neck, radiator, hoses, clamps and
water pump weep hole for leakage.
Pressure Cap Test
1. Remove the hood from the front cab (see
“WARNING” under “Cooling System Pressure Test”).
2. Remove pressure cap (A) and test using a pressure
cap tester (commercially available).
3. The pressure cap relief pressure is 13 psi. Replace
cap if it does not meet this specification.
ENGINE
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