Fork lift hydraulic problem
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Posted by Tony Serviente on September 18, 2004 at 19:14:15 from (18.104.22.168):
My 1960 Baker forklift has a vexing problem. If she is lowering a load, it will randomnly drop it a good 6" to a foot. The boom angle also does this. Under no load it works smoothly. Can't find any obvious mechanical problems in the mast. Since it does this for both the lift and the mast angle I am assuming it has to be something confined only to the valves in the control levers, and not the pump. It only does this when pressure is being relieved, not on the lift cycle. Any ideas? In hydraulic systems is there typically a return valve in common to all the seperate takeoffs? My best guess was that if there was, that might be causing this symptom. Thanks!
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