I have a 1998 Komfort 27TSC. Is there a way to override the hydraulic system and extend the slideout manually? When I use the button I hear the pump running but the slideout doesn't move, neither in nor out. I have checked the pump motor and it is working fine. The reservoir is full to within 3/4ths inch to the top. I know you can retract the slide manually but can you extend it manually? What if I reverse the oil lines? Can I jack it out then?