Help 1984 funlite
 

Hello all, I have recently bought a hi-lo and have a small problem... it is stuck in the upmost position... I have cleaned up the hydraulic system and wiring is all correct... the safety bar fully engages and disengages when I pull the cable. I have throughly Lubricated all the cables and Pullys underneath the HI-LO and everything is connected correctly... when I hit switch and pull the cable to the up position it makes a Squeal which it says in the 1983 owners manual I found on the forum is normal and means it is in its upmost position and when I hit the button to the lower position a get a click noise by the pump but nothing else.. not sure where to release pressure in the pump or how or if it is possible to fill the Reservoir in the out position...