1105 hydraulic system


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1105 hydraulic system

robby power steering and 3 point hitch dosent work but multi power pto and diff lock does
Big Dean Hi Robby
I was a a mechanic for MF dealers for 27 years I retired in 1995 and have about forgot all I knew about the MF1100 series hydraulics. I remember enough that the things you have working are operated by the charge pump under the plate in front of the seat. The things that are not working are operated by the radial pump up front that is driven by the crankshaft pulley. I remember there is a very small orifice in the radial pump that gets stopped up sometimes and causes it to shut down. I have had to clean those orifices several times. There is also a relief valve in the back but If remember right it will not effect steering but it has been so long since I have work on one of them I could be wrong on that part. I seam to remember having one the bolts back out of the crankshaft pulley one time so you might check to see if that shaft going to the pump is turning. Hope This gives someplace to start looking

robby thanks for the advicve i ended up taking the cover off under the seat and found that the pressure regulating valves screw had come out so i put it back in and put new o rings in that system and put a new gasket in as well as changing and some other orings else were and tractor is working better now than before, i have only put 20 hours on this tractor since buying it a month ago


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