I have found a problem in my forklift Linde 358H160 of Gear shifting. Once I apply the brake and put Machine in Neutral and after I shift to forward, it fails to shift the gear. After acceleration and engine speed up to (900 to 950) rpm and (40 to 50) second delay, gear shift to forward automatically and gears shift gradually by speeding up the Engine speed. Some times machine couldn't upshift the gears automatically. I have Pathfinder software but couldn't find the connector in the machine, but I found Error (44.10) in Display of Transmission Module (APC-200). Hope anybody help me to solve the issue.