I have just replaced the hydraulic filter housing and outletpipe (broke the housing and bent the pipe with a tree stump impact...whoops). the FEL is working (hesitant but works) but the rear power lift will not operate. The tractor is spewing quite a bit of foamed hydraulic fluid from the resivoir vent when the FEL is lowered (under the seat, has been topped off). The only thing I can think of is the the filter might be in backwards. There is no arrow to show install direction on the new housing...does the philips head screw in the housing go toward the pump or the cotter pin on the opposite side go towards the pump (I have uploaded photos, hopefully they will embed.....new to this site). Do I need to prime the pump/line? I used AW 32 fluid to replenish the resivoir....I am guessing the foam is a funtion off air escape from the system and or reacting with the old fluid. Any ideas? Any and all help will be much appreciated!!!