Cooling System Bleeding Procedure; Radiator; Radiator Cleaning; Coolant Drain / Radiator Removal - Polaris 2009 Sportsman XP 850 Service Manual

COOLING SYSTEM

Cooling System Bleeding Procedure

1. Place the vehicle in PARK.
Be sure the engine has cooled and there is no
pressure built up in the cooling system before
removing the radiator cap. The coolant may be
hot and could cause severe injury or burns.
2. Remove the front rack to access the radiator pressure cap
and recovery bottle.
3. Remove the pressure cap and top off coolant. Leave the
pressure cap off at this point.
4. Remove recovery bottle fill cap and fill the bottle to the
"MAX" line. Reinstall the recovery bottle cap.
NOTE: If the coolant level is LOW in the radiator, or
if there are leaks in the system, the coolant system
will not draw coolant from the recovery bottle.
5. Start the engine and allow it to idle for 5-10 minutes until
the thermostat opens and allows coolant to travel through
the entire system.
NOTE: When the thermostat opens the radiator
coolant level will drop significantly.
6. Squeeze the coolant lines to help purge the system of air.
7. With the engine still idling, top off the radiator with Polaris
Premium Antifreeze. If no air bubbles are seen at the
radiator filler neck, the system should be purged of air.
8. Reinstall the radiator pressure cap
Be sure to install the radiator pressure
cap before shutting off the engine.
Coolant may spit out of the radiator.
9. Stop the engine and allow it to cool. Top off the radiator
with coolant. If you hear or see a "glug" at the filler neck
or the coolant level drops indicating that coolant has been
pulled into the system, fill the radiator first before filling the
recovery bottle.
10. Any air remaining in the system should continue to bleed
out through the recovery bottle
11. Repeat this procedure if you are still having difficulty
bleeding the system.
4.4
CAUTION
WARNING

RADIATOR

Radiator Cleaning

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.
Washing the vehicle with a high-pressure
washer could damage the radiator fins and
impair the radiators effectiveness. Use of a
high-pressure washer is not recommended.

Coolant Drain / Radiator Removal

Coolant Drain
1. Remove the front rack to access the pressure cap (see
Chapter 9 "Front Rack").
Never drain the coolant when the engine and
radiator are warm or hot. Hot coolant can cause
severe burns. Allow engine and radiator to cool.
2. Slowly remove the pressure cap to relieve any cooling
system pressure.
3. Place a suitable drain pan underneath the radiator on the
right-hand side of the vehicle.
CAUTION
WARNING