Hey all, Trying to finish up my new wood hauler this weekend, got the flat bed mounted, the subframe attached to that and hooked up the piston and 12 volt electric hydraulic pump I got on ebay.........I hit the swicth and the piston pushed, but very slowly and not with alot of force. Anyone know if there is a way to adjust the pressure on these pumps?? It's a Fenner 12 volt pump.....looks like a starter motor, with a 2 gallon tank??? Is there an adjustment screw or something I can tweak?? Help!!!!