<font color="blue"> It is extremely important to change it ASAP to cleanse the transmission of residual manufacturing debris, </font>
I find it odd though that some manurfactuers do not require it. I also wonder if there is some debris in there left over from manufacturing, why are the filters not taking care of it? I still am not convinced the oil needs changing as much as cleaning. I changed mine at 50 hours and still question the oil part. I suspect the oil is fine but the filters may have cleaned up and trapped more at 50 hours then they will at the 200 hour intervals. If these manufacturing particles are floating around at 50 hours, I think they were doing it at 5, 10, 30, 50 and all the hours in between. It would therefore seem that the damage has been done if the filters were not trapping them prior to entering hydralic componets /forums/images/graemlins/smirk.gif
I still suggest you do it if for no better reason then insurance purposes.