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Posted by cary on Tuesday, October 20, 2009:
I have a 3010 that has a noisy hydraulic pump sounds like a hammering sound,I have checked the coupler and it seems to be ok. the hydaulic preasure at the rear scv is 2000psi. all the hydraulics seem to work ok outside of the 3pt,it chatters on the first cycle after the tractor has sat for a day or two. Some of the sound appears to be comming from the the priority valve behind the dash.When you use the 3pt or use the scv the noise is greatly reduced for a couple of seconds until the cylinder or 3pt reaches the end of its stoke
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