Hi, just bought my first machine and after a couple hours of use had a major leak and ended up replacing 3 tubes. I refilled the hydraulic fluid tank to the dip stick range- added about 5 gallons. Started up and ran but after a few minutes the hydraulics started acting funny. I checked the dipstick again and it was below the line. I've added another 3 gallons to the hydraulic tank and am still not touching the dipstick. Started it up and lifted the seat, there are no visual leaks or new puddles. I'm assuming when I started the machine most of the fluid refilled the hydraulic system but wanted to make sure this is normal. Other than a mower this is My first machine so I'm pretty "green". Thanks