Hello, 1st I spoke to Toyota forklift in Germany. They even don't know this type anymore. for the smaller fd100 I got some scans several years ago from Toyota but this office was closed in 2018. Unfortunately we have quite the opposite of the US "right to repair" Here. 2nd I just assume there is a repair manual cause I have one for the FD100 and saw one online from FD 200. I you find dealer documentation what would really help is documentation for the okamura transmission. I had big problems with it but after some effort I fixed it myself. Okamura still exists but just the name for a forklift transmission producer in China. The Japanese company does not produce transmissions anymore.