Polaris RZR RS1 2021 Owner's Manual For Maintenance And Safety page 108

MAINTENANCE
TRANSMISSION (MAIN GEARCASE)
Always check and change the fluid at the intervals outlined in the Periodic
Maintenance Chart section. Refer to the Gearcase Specifications Chart section
for recommended lubricants, capacities and torque specifications.
FLUID CHECK
q
The fill plug is located on the rear of the gearcase. Maintain the fluid level at
the bottom of the fill plug hole.
1. Position the vehicle on a level surface.
2. Remove the fill plug.
3. Check the fluid level.
4. Add the recommended fluid to the bottom of the fill plug hole. Do not overfill.
5. Reinstall the fill plug. Torque to specification.
FLUID CHANGE
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The drain plug is located on the bottom of the gearcase. Access the drain
plug through the drain hole in the skid plate.
1. Remove the fill plug.
2. Place a drain pan under the drain plug.
3. Remove the drain plug. Allow the fluid to drain completely.
4. Clean the drain plug.
5. Reinstall the drain plug. Torque to specification.
6. Add the recommended fluid to the bottom of the fill plug hole. Do not overfill.
7. Reinstall the fill plug. Torque to specification.
8. Check for leaks. Discard used fluid properly.
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