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IH 544 Air in Hydraulic system-Std Trans/Diesel
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Posted by IH 544 Tom on April 03, 2007 at 09:56:32 from (152.163.100.197):
The hydraulic pump squeals after a few minutes from startup, air gets in the system and steering goes out. I have checked the flow divider valve, pilot valve, filter. Everything looks fine there. How do I go about checking the Hydraulic pumps? There are two bolts on the side housing. It appears you can put a guage there to check pumps pressure.(Aux/PS and Hitch pump. I have a guage but need to know what the operating pressureshould be or can someone point me in another direction. The rear hitch drops very fast so it could be a problem in the check valve. The pumps are immersed in the hydraulic fluid so I don"t know where the air could be getting in. Someone please point me in the right direction. Thanks, I am going crazy.
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