Ford 4500

harryrub · Mar 25, 2020

I have a Ford 4500 diesel with power reversing transmission and hydraulic package with bucket and
backhoe. I have a leak in the left side subframe hydraulic tank that needs a weld repair. I
understand the trans and hydraulic are a unified system. Must I drain the entire system to have
the welding done or can the tanks be isolated and drained separately?

Destroked 450 · Mar 25, 2020

The trans and any hydraulics for a three point lift if the tractor has it are unified, but the loader backhoe hydraulics is a separate system with oil in both main loader frames and the tank thats built into the front grill shell.
You won't need the drain any of the oil from the tractor chassis, however the loader hydraulics holds 12-13 gallons so you'll need a large or multiple containers to catch that amount of oil.

Sean in PA · Mar 25, 2020

The trans and any hydraulics for a three point lift if the tractor has it are unified

No, that isn't true. The transmission on a 4500 is its own sump. The rear axle, which is the sump for the 3 point hydraulics is its own sump. The loader frame is part of the reservoir for the loader/backhoe hydraulics, and there is a tank up above the radiator that is also part of the reservoir for the loader/backhoe hydraulics system. In the earlier 4500's that tank above the radiator is also used for the power steering, but once they switched to the p/s pump with the integral reservoir it became its own separate sump as well.

Destroked 450 · Mar 26, 2020

Yea I fubar'd the trans and rear axle thing, even if it has a manual trans like mine they are separate.
Still yet to repair the loader frame only the loaders hydraulics need drained.

harryrub · Mar 26, 2020

Thanks for the input

Ford 4500

harryrub

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Destroked 450

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Sean in PA

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Destroked 450

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harryrub

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