Polaris 2013 ATV Sportsman 500 Tractor INTL - Manual (Page 87)

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MAINTENANCE
Active Descent Control (ADC) Fluid
Fluid Change
1. Position the vehicle on a level surface. Before performing the fluid
change, allow the vehicle to sit for at least 30 minutes.
2. Thoroughly clean the areas around and on the ADC reservoir and
bleeder valves (one on each side of the differential).
3. Remove the reservoir cap and diaphragm assembly. Use a shop
towel or suction tool to remove debris from the fluid and reservoir.
TIP: Debris in the reservoir may result in inadequate bleeding and reduced per-
formance of the system.
4. Fill the reservoir to the maximum line with fresh recommended
fluid.
5. Remove the protective caps from the bleeder valves.
6. Slowly loosen one of the valves (turn counter-clockwise) and allow
fluid and trapped air to flow from the fitting. Close the valve when
clean fluid begins to flow. Repeat this step for the remaining valve.
IMPORTANT: Close the bleeder valves before the reservoir fluid level drops
below the minimum fill line. Adding fluid to an empty reservoir will result in
trapped air. If the level drops below the minimum line, add fluid to the maximum
line and repeat step 6 before proceeding.
7. Torque the valves to 80 in. lbs. (9 N-m). Reinstall the valve caps.
8. Add fresh recommended fluid to the reservoir until the level is
between the minimum and maximum marks. Make sure the reser-
voir is free of debris.
9. Reinstall the cap securely. Clean up any drips or spills.