White 1370 3pt Hydraulics Makes a Strange New Noise

farmermaker · May 25, 2019

Hi everyone,
I'm quite new to hydraulic systems. Our '74 White 1370 started making a noise everytime we raise the 3pt when there's a load on it.

Here's little video where the noise is audible:

I've since changed the fluid, the screw-on filter at the loader actuator and some damaged hydraulic lines near the tractor. I am not sure what to look at next.

There is one damaged line near the rear of the tractor that I will change soon. I think I might of missed a filter somewhere but I don't know where to find it.

I will take a closer look at the parts/service manuals. The owner's manual doesn't offer much information in this regard.

Thanks for trying to help a farmer!

Dave M7040 · May 25, 2019

I suspect there is a suction filter or screen for the hydraulic pump serving the 3 pt hitch.

Your description of a filter near the loader valve makes me think the loader has its own pump and reservoir apart from the 3 pt hitch.

Listening to your video it is hard to tell when the nose starts in relation to the movement of the 3 pt arms.

When the arms reach the top of their stroke, the hydraulic control should stop sending pressure to the arms.

Dave M7040

farmermaker · May 29, 2019

Dave M7040 said:
I suspect there is a suction filter or screen for the hydraulic pump serving the 3 pt hitch.

Your description of a filter near the loader valve makes me think the loader has its own pump and reservoir apart from the 3 pt hitch.

Listening to your video it is hard to tell when the nose starts in relation to the movement of the 3 pt arms.

When the arms reach the top of their stroke, the hydraulic control should stop sending pressure to the arms.

Dave M7040

I remember hearing that previous owner installed an secondary pump for the loader. Now I just need to find the filter for the 3pt pump setup. I'll keep you posted. Thanks!