Vintage Air System not too cool????!!!!

Thanks GaryS, I did find that in the instructions. I also called my dad and he said that 1.8lbs. is NOT 1lb 8oz. and that 1.8lbs is 1lb 8 tenths of a pound so the total amount of r134a should be just under 29oz.

I screwed up when I told the ac shop to charge it to 1lb 8oz, so I'm undercharged as StrokerScamp had said, now I'm off to the store to get a 12oz can put some in.....with any luck this will fix my problem.