Need help with a ex55ur

i am new to this forum and in need of help bad. I have a 1996 ex55ur and the red system light is on and buzzers going off. I have no movement when you pull the boom controls back to me. All other functions work good. When I override it they work and the system light goes off but they move really slow. If anyone can help please please help me. I cannot find a manual, wiring schematic or hyd schematic. Thanks in advance....