I have a 2012 JCB 930 All terrain forklift. While moving objects around the yard, transmission low pressure warning light came on. I parked the forklift, checked transmission oil level. It was alittle low but not much. Shifts fine and drives okey. I decided to remove the strainer/ mesh filter and clean it. cleaned it used compressed shop air to dry it and let it sit over night. I re-installed next day and filled with 10W trans fluid. The warning light still is ON !! What else can i check. Next i am thinking is to replace the transmission oil pressure switch. Any help.