1. Locate the hydraulic fluid reservoir. It is typically a black or gray plastic tank with a yellow cap labeled "Hydraulic Fluid." It is usually located on the right side of the tractor, behind the seat.
2. Clean the area around the hydraulic fluid reservoir cap to prevent dirt from entering the system.
3. Remove the hydraulic fluid reservoir cap by turning it counterclockwise. Be careful not to drop the cap into the reservoir.
4. Insert a funnel into the hydraulic fluid reservoir.
5. Add hydraulic fluid slowly to the reservoir. The fluid level should be between the "FULL" and "ADD" marks on the dipstick.
6. Replace the hydraulic fluid reservoir cap.
7. Start the tractor and let it run for a few minutes. This will circulate the new hydraulic fluid throughout the system.