1. Locate the hydraulic reservoir. It is a metal tank located on the left side of the tractor, just behind the seat.
2. Remove the hydraulic reservoir cap.
3. Check the fluid level. It should be between the "Add" and "Full" marks on the dipstick.
4. If the fluid level is low, add enough hydraulic fluid to bring it up to the "Full" mark.
5. Replace the hydraulic reservoir cap.