Polaris ACE 570 (2018 year). Manual - part 25

104

MAINTENANCE

Cooling System

Coolant Level

Always check and change the coolant at the intervals outlined in the 

Periodic Maintenance Chart beginning on page 85. Maintain the coolant 

level between the minimum and maximum marks on the bottle (when 

the fluid is cool). The coolant level in the bottle can be viewed through 

the left front wheel well or in the compartment in the front box.
1. Position the vehicle on a 

level surface.

2. View the coolant level in 

the overflow bottle.

3. If the coolant level is 

below the safe operating 

range, remove the cap and 

use a funnel to add 

coolant through the 

opening. Reinstall the cap.

Tip: If coolant must be added 

often, or if the overflow bottle 

runs completely dry, there 

may be a leak in the system. 

Have the cooling system 

inspected by your POLARIS 

dealer.

Radiator 

Cap

Overflow 

Bottle

105

MAINTENANCE

POLARIS Variable Transmission (PVT) System

Failure to comply with the instructions in this warning can result in severe injury 

or death.
Do not modify any component of the PVT system. Doing so may reduce its 

strength so that a failure may occur at a high speed. The PVT system has been 

precision balanced. Any modification will cause the system to be out of balance, 

creating vibration and additional loads on components.
The PVT system rotates at high speeds, creating large amounts of force on 

clutch components. As the owner, you have the following responsibilities for 

your own safety and the safety of others:
• Always follow all recommended maintenance procedures. Always look for and 

remove debris inside and around the clutch and vent system when replacing 

the belt.

• See your POLARIS dealer as outlined in the owner's manual.
• This PVT system is intended for use on POLARIS products only. Do not install 

it in any other product.

• Always make sure the PVT housing is securely in place during operation.

WARNING

106

MAINTENANCE

POLARIS Variable Transmission (PVT) System

Belt Replacement/Debris Removal

If a belt fails, always clean any debris from the PVT intake and outlet 

duct and from the clutch and engine compartments when replacing the 

belt.

WARNING! Failure to remove ALL debris when replacing the belt could result in 

vehicle damage, loss of control and severe injury or death.

1. Allow hot components to cool before performing this procedure.
2. Remove the clutch cover screws and open the clutch cover. Remove 

all debris wrapped in and around the PVT system.

3. Remove all debris from the entire clutch air duct passage.
4. Check for signs of damage to seals on the transmission and engine. 

See your POLARIS dealer promptly for service if any seals appear 

to be damaged.

Tip: Belt slip is responsible for creating excessive heat that destroys belts, 

wears clutch components and causes outer clutch covers to fail. Switch to 

low range while operating at slower speeds to extend the life of the PVT 

components (belt, cover, etc.).

107

MAINTENANCE

POLARIS Variable Transmission (PVT) System

PVT Drying

There may be some instances when water is accidently ingested into the 

PVT system. Use the following instructions to dry it out before 

operating.

NOTICE: When washing the vehicle, always avoid spraying water directly 

toward the PVT intake duct. See page 127 for recommended 

washing procedures. 

1. Remove the drain plug from the 

bottom of the clutch box. Allow 

the water to drain. Reinstall the 

drain plug securely.

2. Place the transmission in PARK. 

Apply the brakes. Start the 

engine.

3. Apply varying throttle for 10-15 

seconds to expel the moisture 

and air-dry the belt and 

clutches. Do not hold the 

throttle wide open for more than 

10 seconds.

4. Allow the engine RPM to settle 

to idle speed. Apply the brakes. 

Shift the transmission to the 

lowest available range.

5. Test for belt slippage. If the belt slips, repeat the process.
6. Take the vehicle to your POLARIS dealer for service as soon as 

possible.

Drain Plug