AC 190 hydraulic issues

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   hey everyone. I am wondering about my 190 hydraulics again. my gauge from Napa reads only 1200 psi. I installed a relief valve that is supposed to be pre set at 2000 psi.  however when the tractor is running 1400rpms If I engage the remotes it strains the engine. gauge still only reads 1200 psi. could the gauge not function properly if there is air or something in it? it is a 5k psi gauge. or is the hydraulic pump going out? the previous owner did redo the pump so I am guessing It is still good. thanks

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Allis Eli Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 Apr 2024 Location: MN Points: 53	Post Options Post Reply Quote Allis Eli Report Post Thanks(0) Quote Reply Posted: 29 Apr 2024 at 8:06pm
	hey everyone. I am wondering about my 190 hydraulics again. my gauge from Napa reads only 1200 psi. I installed a relief valve that is supposed to be pre set at 2000 psi. however when the tractor is running 1400rpms If I engage the remotes it strains the engine. gauge still only reads 1200 psi. could the gauge not function properly if there is air or something in it? it is a 5k psi gauge. or is the hydraulic pump going out? the previous owner did redo the pump so I am guessing It is still good. thanks

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22149	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 29 Apr 2024 at 8:33pm
	Multiple times you were told to check pressures at 2,000 rpm or more. Why aren't you ?? Never have you said who you bought the tractor from had just been thru the hydraulic pump. This would have been nice to know. A 3K gauge is better than a 5K gauge. Re check at wide open throttle. Adjust the relief valve "in" 1/2 turn at a time and if you cannot reach 2,000 psi you have PUMP trouble.

Allis Eli Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 Apr 2024 Location: MN Points: 53	Post Options Post Reply Quote Allis Eli Report Post Thanks(0) Quote Reply Posted: 29 Apr 2024 at 8:40pm
	okay will do

Allis Eli Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 Apr 2024 Location: MN Points: 53	Post Options Post Reply Quote Allis Eli Report Post Thanks(0) Quote Reply Posted: 01 May 2024 at 11:06am
	hey everyone update on the 190. I tested the relief valve at 2000 rpm and I was getting less psi than before only peaked maybe 1000. I tried adjusting it but nothing, I turned it in 1/2 turn per time . I turned it in 3 whole turns in and psi stayed the same. I am guessing pump needs a rebuild. previous owner did put in new plates so I am wondering if maybe the suction screen is clogged or? Thanks

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22149	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 01 May 2024 at 12:28pm
	Back off the relief valve before you forget. Not a plugged screen or filter. Your power steering works fine so that ain't it.

Allis Eli Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 Apr 2024 Location: MN Points: 53	Post Options Post Reply Quote Allis Eli Report Post Thanks(0) Quote Reply Posted: 01 May 2024 at 1:10pm
	so what would be your recommendation on Redoing the pump?

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22149	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 01 May 2024 at 2:37pm
	Remove the pump. Find someone who is capable of going thru it. Explain to them the problem is only on the lift section and not the power steering or Traction Booster pumps.