"Hey! Heave-ho!" "Hey! Here we go!" "I find! Snow good! So good!" "Maaajor! Maaajor!"
(Not a totally literal translation, but I had to work around the puns of yuki/suki and maji/magic, plus the fact that "dokkorase" is just a semi-nonsense word used to rhyme with the more standard effort sound of "yokkorase".)