Just wanted to let you know what the problem was. Flight Systems had us change the setting on function 11 from 130 to 51 and the truck went full speed. The tech told me he wanted to to do some research and he would get back to me-which he never did.
I called Linde and they told me to stop **** around and get a controller from them. He guaranteed me that it would work as soon as we wired it up. Well it didn't. It worked exactly the same as the ones from Flight Systems. After 3 hours of checking this and that and making sure the functions were set properly he checked with some one else at Linde and they told him that some of these trucks will only run correctly if you set function 11 to 51. We did and the truck runs fine-just like the one from Flight Systems. Ship it.