Coolant Level; Recommended Coolant; Bleeding The Cooling System - Pressure Caps; Bleeding The Cooling System - Surge Tanks - Polaris INDY TRAIL RMK Service Manual

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.

Coolant Level

Coolant level in the reservoir or surge tank must be maintained between the minimum and maximum levels to
prevent overheating and serious engine damage.

Recommended Coolant

Use a 50/50 or 60/40 mixture of antifreeze and distilled water depending on the freeze protection required for your
area. Do not use tap water in the system or reduced cooling or filter contamination may result. Replace coolant
every 2 years or if contaminated. Inspect coolant filter annually for contamination and replace if necessary.

Bleeding the Cooling System - Pressure Caps

If the cooling system should become low in the tank and/or
filler neck, the system should be bled of any trapped air us-
ing the following procedure:
1. Allow the system to cool completely. Fill the reservoir
with coolant to the maximum indicated mark.
2. With pressure cap removed, add coolant and fill to the
top of the filler neck.
3. Install the pressure cap with the lever lock up in its
release position and run the engine at low idle RPM
(600±100) to allow all air to purge and prevent trapped
air which can lead to overheating.
specified RPM after bleeding.

Bleeding the Cooling System - Surge Tanks

If the cooling system should become low in the surge tank,
the system must be bled of any trapped air using the fol-
lowing procedure:
1. Allow the system to cool completely. Fill the surge tank
with coolant to the maximum indicated mark.
2. Start the engine and loosen the bleed screw on the top
of the water pump until trapped air has been purged.
Tighten the bleed screw.
3. Loosen the bleed screw at the end and top of the water
outlet manifold until trapped air has been purged.
Tighten the bleed screw.
4. Recheck the surge tank coolant level and add coolant
again if necessary.
Check Valves - tapered
side points in flow direction
Check Valve
Flow
Filter - Filter is located before the check valve
Reset idle to
MAINTENANCE / TUNE UP
Flow
Filter
Lift Lock Lever To Bleed
Remote Filler Neck Shown
Fill Surge Tank
Check Valve
Remote Filler Neck
Bleed at 600 RPM
Caution:
Increase RPM
slowly when lever
lock is up to avoid
loss of coolant.
Manifold Bleed Screw
2.11