ZF Transmission Problems

I have a Samsung SL150 With a ZF Transmission. Forward doesn't always work, but seems to engage in to reverse always. I haven't had the loader very long but I did alot of forward and reverse unloading bales and loading the belly dump this last fall and it worked great! Now all of a sudden no forward all the time. I know this isn't the most common loader as for as name brand, but the transmission is. So if anybody can help it would be greatly appreciated. When I do have forward it shifts good...

ZF Transmission Problems

ZF Transmission Problems