Cooling System Hoses - Polaris Sportsman 400 Service Manual

LIQUID COOLING SYSTEM OVERVIEW
The engine coolant level is controlled or maintained by the recovery system. The recovery system components
are the recovery bottle, radiator filler neck, radiator pressure cap and connecting hose.
As coolant operatingtemperature increases, the expanding(heated) excesscoolant isforced out of theradiator
past the pressure cap and into the recovery bottle. As engine coolant temperature decreases the contracting
(cooled) coolant is drawn back up from the tank past the pressure cap and into the radiator.
S Some coolant level drop on new machines is normal as the system is purging itself of trapped air. Observe
coolant levels often during the break-in period.
S Overheating of engine could occur if air is not fully purged from system.
S Polaris Premium 60/40 is already premixed and ready to use. Do not dilute with water.
COOLANT STRENGTH / TYPE
Test the strength of the coolant using an antifreeze
hydrometer.
S A 50/50 or 60/40 mixture of antifreeze and distilled wa-
ter will provide the optimum cooling, corrosion protec-
tion, and antifreeze protection.
S Do not use tap water, straight antifreeze, or straight wa-
ter in the system. Tap water contains minerals and im-
purities which build up in the system.
S Straight water or antifreeze may cause the system to
freeze, corrode, or overheat.
Polaris 60/40 Anti-Freeze / Coolant
PN 2871323

COOLING SYSTEM HOSES

1. Inspect all hoses for cracks, deterioration, abrasion or
leaks. Replace if necessary.
2. Check tightness of all hose clamps.
CAUTION:Do not over-tighten hose clamps at radiator, or
radiator fitting may distort, causing a restriction to coolant
flow. Radiator hose clamp torque is 36 inch lbs.
RADIATOR
1. Check radiator air passages for restrictions or
damage.
2. Carefully straighten any bent radiator fins.
3. Remove any obstructions with compressed air or low
pressure water.
COOLING SYSTEM PRESSURE TEST
Refer to page 3.6 for pressure test procedure.
- projex@inbox.lv -
MAINTENANCE
Antifreeze Hydrometer
2.21