super a hydraulic pump whine

I have a super a that when the tractor is running there is a whine coming from the hydraulic pump system. When the levers are actuated the whine quits. Also sometimes the hydraulics are slow to start when actuated. Is this whine alright or is something wrong. thanks Larry
 
My super A was also noisy. I changed the oil from god knows what was in it, to 30W oil and the noise was reduced by about 70% and it lifted quicker than it did before the change. So... try changing the oil.
HTH
Dave
 
Have loader on a Farmall B with live hydraulic. The loader been on tractor for forty + years and all we ever used was IH Hy-Trans in the system. Works great summer or winter.
 

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