Which hydraulic fluid?

[Thumbcocker]

We have a 1971 Ford 3000 diesel that is low on hydraulic fluid. What is the correct replacement fluid? The stuff in the manual is discontinued.

[rancher1913]

new holland makes the factory lube for them still, want to say it is ford 134 oil. any trans/hydraulic fluid will work but not regular hydraulic. the fluid in the transmission is separate from the hydraulic system so I have never figured out why they require the combo trans/hydraulic but its what ford calls for and what I have always used. I have a 3000 gaser that does the bulk of the little jobs around here. I am sure you are aware that the transmission fill ports do not fill the lift system hydraulic, its filled from the back end. the filter is internal and a royal pita to change

[Thumbcocker]

We have a small drip from a 1/4" hole on the belly of the tractor south of the oil pan. Really don't have the tools to split the tractor. 3 point arms aren't lofting the bush hog so I am betting it's low on fluid.

[rancher1913]

thats usually an indicator of low fluid. most tractor supply stores have "universal trans/hydraulic oil" , just check the application chart and they should list ford tractors. the thousand series fords are built like tanks and can survive stuff like this with no ill effects. now I got to go look for this hole you speak of and see if I can help some more. they do make a kit to stop the steering wheel leak if yours develops that, it works wonders.

[rancher1913]

that hole is a drain for the clutch housing, which means your front tranny seal is leaking, not the end of the world, just keep an eye on the tranny fluid level. there is a big plug beside your shift levers for adding oil and they use a plug on the side for the oil level.

see if this link works, should be a free maintenance manual.https://redirect.viglink.com/?format=go&jsonp=vglnk_153464615119416&key=a6c73c8a58f6c5d5816e8336c8228973&libId=jl083l59010004o0000DAb88es0js&loc=https%3A%2F%2Fwww.tractorbynet.com%2Fforums%2F parts-repairs%2F329850-free-ford-tractor-service-manual.html&v=1&out=http%3A%2F%2Fwww.dadzoolife.com%2F2014%2F04%2F 28%2Fford-tractor-service-manual-series-2000-7000-1965-1975%2F&ref=https%3A%2F%2Fwww.google.com%2F&title=FREE%20Ford%20Tractor%20Service%20Manual%20S eries%202000-7000%201965-1975&txt=Ford%20Tractor%20Service%20Manual%20Series%202 000-7000%201965-1975%20%7C%20dadzoo

[rancher1913]

here is the new holland site for parts and exploded views, if it works. https://partstore.agriculture.newholland.com/us/parts-search.html#epc::model_find

looks like it worked, just type in 3000

[Thumbcocker]

Many thanks,

[redneck1]

Call around before you buy if possible. When I changed the fluids in my tractor a local oil supply company had Mobil hy-trans for almost $30 cheaper per 5 gallon bucket then tractor supply , Wal-Mart or the parts stores had the off brand buckets for