hyd . oil change

I have a tiger cat w/61 in deck and I changed the oil and filled the filter before installing it like the manual said. The manual said it takes 2.5 quarts of oil to fill it to with in 3 and 1/4 inches from the top. I have put in 2 3/4 quarts and its still 3 and 3/4 inches from the top. Do I keep pouring oil in till I get to the 3 1/4 inches from the top? Thanks