I just got a used Pacific Fitness Zuma home gym (#223525) and need to find online a place to download a free users manual so I can figure out how to use it. Not the assembly instructions, but rather the USER manual, is what I need. I saw a comment on a site that said it's basically the same as precor 3.15, so I'd even take the user manual for that if someone can point me to it. Thank you - I'm desperate - have never used a machine before.