Default rooting the galaxy tab 10.1

I've been able to get as far as installing Odin but when I try to enter recovery mode I press the up arrow on my volume and it shuts off! I just need to install the tab root zip . But like I said it keep shutting off I'm stumped can anyone help me. I tried following the you tube video step by step but its not quite going the way the video says it should be please help:eek: