Hi frens so I have a new question,

I accidentally ripped one of the hydraulic hoses because I am a noob dozer operator basically, but turns out the hydraulic fluid looks like there is some water mixed there, no idea why maybe its old fluid from decades ago who knows. So I was thinking of draining the hydraulic oil and refilling and reparing the hose and hope problem will be somewahta fixed here is a video:

youtube.com/shorts/7zJ4JU3auWc?si=UZJMDtm8R8e6ZdRo

What would you do to fix this sort of thing?
thanks

Jose

It is very common to see milky looking oil in the back end of old thousand series Ford tractors and Massey 65 tractors from years of condensation and oil not being changed. No harm was ever done. Fix the hose and change the oil you should not have any problem.

Don't feel so bad about things; I have a D4D here that sat outside and collected plenty of moisture inside the case. It is nice and creamy. I will drain and flush if necessary before refilling. Just another part of maintenance. JM

drain it and refill. if your worried work it for a few hr to get it warm then drain and refill again. it's a old trick with machines that havent had proper oil changes to clean them out as the new oil will pick up a lot of the impurities etc and carry it in the oil. there is a filter in the hydraulics see if you can get a new element its a good idea to change it too.
go from there. you will need sae 100r2 to replace that hose if it has the field fit fittings rather than crimp on style. the fittings are sae code 61 and still used today. its a good idea to fit new high tensile bolts to the hose assembly

Take the swivel nut off the hose and the fitting out of the cylinder ,take the parts to a hyd store and get new one.
Pick up more oil, drain what you can out of tank and refill .
Bob

Thanks bluox! So I drained this out of the tank:

youtube.com/shorts/fblEYjMcgDo?si=HAZ3V8hpPk-93ICr

I got a new hose, refilled the tank and im thikning of losening up the hoses on the other cylinder to help "push" the milky oil out of the cylinders for a couple days then refill again and tighten up all the hoses. Then Im thinking maybe I will drain again with the hand pump and refill with new oil in a couple weeks

This is a video of the plot of land im working on with the dozer:

There is a drain plug on the bottom of the tank on the line going to the hyd. pump.
If I am remembering right the hyd. filter is on top of tank under hood.
Bob