Filling And Bleeding Procedure; 440/500/600/700 Domestic Twins Bleeding Procedure - Polaris 2003 Pro X Service Manual

ENGINE
WARNING
Never remove the pressure cap when the engine is warm or hot. If the pressure cap is to be removed, the engine
must be cool. Severe personal injury could result from steam or hot liquid. Use of a non-standard pressure cap
will not allow the recovery system to function properly. If the cap should need replacement, install the correct
Polaris cap with the same pressure rating. Refer to the appropriate parts manual.
NOTE: Always use Polaris premium antifreeze 60/40 premix. Bleed system at specified RPM or air will remain
trapped in system, which may result in overheating.

Filling and Bleeding Procedure

If the cooling system should become low in the reservoir
tank and/or filler neck, the system should be bled of any
trapped air using one of the following procedures, depend-
ing on model.
440/500/600/700 Domestic Twins Bleeding Pro-
cedure
1. Fill cooling system . Leave pressure cap off.
2. With engine running at specified idle speed, loosen
bleed screw on thermostat housing.
3. Continue adding antifreeze mixture to reservoir until
system is purged of air.
4. Close bleed screw and tighten securely.
5. Fill reservoir bottle until coolant level is between the
minimum and maximum fill marks.
6. Replace pressure cap.
7. Start engine and test for leaks.
2.60
Bleed Screw
500/600/700 Libertyt Twins