Howdy bbforks,
Thanks for your reply. The numbers on the ID tag are UGF0340Y and UGF03-000594. It is hydraulically operated and we figured the valve may be stuck as the forklift has been sitting unused for a good while. We were hoping there may be a trick to freeing it up. We tried putting down pressure on the forks with a backhoe bucket while holding the lever in the down tilt position, but it did not budge. We can see/hear that the pressure is being applied on the tilt up side, but does not seem to be going to the tilt down side. We've been checking the internet to try to find a shop service manual for this model. Thanks a bunch for your input...Jim