Dave Mac Posted March 17 Share Posted March 17 Finally refitting the BTD6 dozer blade and hydraulics, anyone recommend a hydraulic oil that will be suitable for the rams and the hydraulic winch ? I would have thought that it would be a mineral oil originally, given the BTD6 was built in 1967. Not sure what grade tho. The hydraulic pump is run off the front of the crankshaft and it has its own oil tank. Quote Link to comment Share on other sites More sharing options...
Ian Beale Posted March 17 Share Posted March 17 I doubt that it will be too fussy. See what Mike Newman says Quote Link to comment Share on other sites More sharing options...
Dirt_Floor_Poor Posted March 17 Share Posted March 17 I would think that anything from HyTran to 15-40 would probably work. I would probably try HyTran or similar and see how it acts. Like @Ian Beale says, I doubt if it’s too fussy. Quote Link to comment Share on other sites More sharing options...
hardtail Posted March 17 Share Posted March 17 If it's a separate system with no chance of mixing with other I would use economical TGH, you probably don't have yellow bucket down there, neither do we but a good conversation usually ensues after it's mentioned 🤔 Quote Link to comment Share on other sites More sharing options...
Tracksbeatwheels Posted March 18 Share Posted March 18 Hi Dave, My TD6, (same model as yours with the hydraulic pump in front), had not had the oil changed probably since Moses made the road up Mount Sinai. Actually its a '48 model. I had a tough time draining the old oil. Had to crack open every connection and let them drain. No way could I empty the tank, so I drilled a hole in the lowest point of the tank and installed a valve. after all that I bought 5 gallons of Tractor Supply hydraulic fluid for $50 and put it in. It functions at least as good as the old water/oil mix did. Short version; these old babies are not too partcular. Good Luck with it. 1 Quote Link to comment Share on other sites More sharing options...
Rawleigh99 Posted March 20 Share Posted March 20 AW32 Hydraulic fluid should be fine since it is a dedicated hydraulic system. Quote Link to comment Share on other sites More sharing options...
mike newman Posted March 21 Share Posted March 21 6 hours ago, Rawleigh99 said: AW32 Hydraulic fluid should be fine since it is a dedicated hydraulic system. ...actually , Rawleigh, I would run AW 68 in those hydralics.......although...unless Dave is venturing into the earth moving business...I doubt it matters much what type of oil (hydralic) is used..... In the 9500 hr Hyundai H210 Dash 7 that where I work has recently been '' decommisioned''.....and as the Station owner was to 'mean '' or totally myopic to the requirements of a modern hydralic system, needing an oil change every one thousand hours...otherwise the condensation over the many hours does little for oil quality.....thus I would put in 10 W or 20 W Mobil engine oil in to ''boost '' the pump (s) lubrication.....Slop in four gallons at a time....it would also bring the oil temperature down.........and not because of, at that point, the extra oil, I must state quite clearly...... This ''proceedure '' significantly improved the performance of the numerous Excavators I worked with in the Caribbean......The AW32 these machines arrived with would get unbelievably hot in that climate.....30W calmed them down , considerably.... This may well have the ''experts'' hammering away at the type writer keys in a fit of petulance at my percieved ignorance.....so be it...but after fifty plus years of climbing into track machines....that ''method ''for older hydralic systems , has never seemed to have any negative effects...... as always..just my opinion.... Mike 2 1 Quote Link to comment Share on other sites More sharing options...
Dave Mac Posted March 21 Author Share Posted March 21 6 hours ago, mike newman said: ...actually , Rawleigh, I would run AW 68 in those hydralics.......although...unless Dave is venturing into the earth moving business...I doubt it matters much what type of oil (hydralic) is used..... In the 9500 hr Hyundai H210 Dash 7 that where I work has recently been '' decommisioned''.....and as the Station owner was to 'mean '' or totally myopic to the requirements of a modern hydralic system, needing an oil change every one thousand hours...otherwise the condensation over the many hours does little for oil quality.....thus I would put in 10 W or 20 W Mobil engine oil in to ''boost '' the pump (s) lubrication.....Slop in four gallons at a time....it would also bring the oil temperature down.........and not because of, at that point, the extra oil, I must state quite clearly...... This ''proceedure '' significantly improved the performance of the numerous Excavators I worked with in the Caribbean......The AW32 these machines arrived with would get unbelievably hot in that climate.....30W calmed them down , considerably.... This may well have the ''experts'' hammering away at the type writer keys in a fit of petulance at my percieved ignorance.....so be it...but after fifty plus years of climbing into track machines....that ''method ''for older hydralic systems , has never seemed to have any negative effects...... as always..just my opinion.... Mike Thank you to everyone for their suggestions, and I don’t think I would be brave enough venture into the earth moving business Mike, especially with a vintage 50yr old machine. So I guess there is a lot to choose from, and as long as it is mineral and anti foam, wet and slippery, there is not much chance of doing any damage. That is the nice thing about these old girls, they are not too fussy ! Cheers Dave Quote Link to comment Share on other sites More sharing options...
just Dave Posted March 21 Share Posted March 21 13 hours ago, mike newman said: ...actually , Rawleigh, I would run AW 68 in those hydralics.......although...unless Dave is venturing into the earth moving business...I doubt it matters much what type of oil (hydralic) is used..... In the 9500 hr Hyundai H210 Dash 7 that where I work has recently been '' decommisioned''.....and as the Station owner was to 'mean '' or totally myopic to the requirements of a modern hydralic system, needing an oil change every one thousand hours...otherwise the condensation over the many hours does little for oil quality.....thus I would put in 10 W or 20 W Mobil engine oil in to ''boost '' the pump (s) lubrication.....Slop in four gallons at a time....it would also bring the oil temperature down.........and not because of, at that point, the extra oil, I must state quite clearly...... This ''proceedure '' significantly improved the performance of the numerous Excavators I worked with in the Caribbean......The AW32 these machines arrived with would get unbelievably hot in that climate.....30W calmed them down , considerably.... This may well have the ''experts'' hammering away at the type writer keys in a fit of petulance at my percieved ignorance.....so be it...but after fifty plus years of climbing into track machines....that ''method ''for older hydralic systems , has never seemed to have any negative effects...... as always..just my opinion.... Mike I like this thinking: oil slipping through clearances is a major cause of heat and I could see heavier fluid slipping less. A little engine oil , I haven’t heard of that, interesting. What ratio M oil to H oil ? Quote Link to comment Share on other sites More sharing options...
Rawleigh99 Posted March 21 Share Posted March 21 I was looking at these charts and it looks like any of them will work for what you are doing. Mike is no doubt right that thicker is probably better in older stuff. 30 weight motor oil would probably be fine too. Go for what is cheapest probably with the little bit most of us use our machines! http://www.hfifluidpowerproducts.com/Pages/Hydraulic-Fluid.html Quote Link to comment Share on other sites More sharing options...
Dave Mac Posted March 23 Author Share Posted March 23 Blade and hydraulics all connected today, I went with the ISO 68 oil and all is good so far and no leaks ! looking ready for work at last ( almost ) I have a job moving dirt for a friend on a small farm, probably take about eight hours, that should sort out any problems. Then back to the shed for a new coat of paint. Dave 5 1 Quote Link to comment Share on other sites More sharing options...
louie figone Posted March 23 Share Posted March 23 Nice straight looking tractor, it will look like new when you paint and decal it out. 1 Quote Link to comment Share on other sites More sharing options...
Dave Mac Posted March 27 Author Share Posted March 27 A bit of a lesson with the grade of Hydraulic oil in these old tractors, when I got the machine from my brother it had very thin almost clear oil in the tank, and he was complaining that the hydraulic pump leaked even after he had it overhauled. Now with the thicker ISO 68 oil there are no leaks and the rams are much more reactive !! Quote Link to comment Share on other sites More sharing options...
mike newman Posted March 27 Share Posted March 27 1 hour ago, Dave Mac said: A bit of a lesson with the grade of Hydraulic oil in these old tractors, when I got the machine from my brother it had very thin almost clear oil in the tank, and he was complaining that the hydraulic pump leaked even after he had it overhauled. Now with the thicker ISO 68 oil there are no leaks and the rams are much more reactive !! ...that surprise's me not !!! ...Sounds good Dave.....of course after a twelve hour shift in your friends sandpit......you may see a tiny ''weep'' around your ram wiper seals...... ..picture's are required !!! Mike Quote Link to comment Share on other sites More sharing options...
Dave Mac Posted March 27 Author Share Posted March 27 26 minutes ago, mike newman said: ...that surprise's me not !!! ...Sounds good Dave.....of course after a twelve hour shift in your friends sandpit......you may see a tiny ''weep'' around your ram wiper seals...... ..picture's are required !!! Mike I have a sneaky suspicion that the oil I took out was synthetic and no one could even spell that in 1967 let alone consider using anything but mineral oil. Big thanks to Mike for pointing me in the right direction on this one…….. Nothing beats experience. Cheers Quote Link to comment Share on other sites More sharing options...
Dave Mac Posted April 11 Author Share Posted April 11 On 3/27/2023 at 6:30 PM, mike newman said: ...that surprise's me not !!! ...Sounds good Dave.....of course after a twelve hour shift in your friends sandpit......you may see a tiny ''weep'' around your ram wiper seals...... ..picture's are required !!! Mike I think after a twelve hour shift on this machine, any tiny “weep” from a ram seal will be the least of my worries Mike !!! My body will be reminding me that it is much older than the tractor 🤠 2 Quote Link to comment Share on other sites More sharing options...
Dave Mac Posted September 24 Author Share Posted September 24 My BTD6 is now happily working on a small forestry block, I wasn’t trying to sell it, but the opportunity came up and it has gone to a good home and getting plenty of use. Big thanks to everyone who helped with advice and encouragement while it was in many parts. I enjoyed the challenge. Cheers Dave 1 1 Quote Link to comment Share on other sites More sharing options...
mike newman Posted September 24 Share Posted September 24 1 hour ago, Dave Mac said: My BTD6 is now happily working on a small forestry block, I wasn’t trying to sell it, but the opportunity came up and it has gone to a good home and getting plenty of use. Big thanks to everyone who helped with advice and encouragement while it was in many parts. I enjoyed the challenge. Cheers Dave .......well Dave..that is rather sad news.........and I guess you are at a 'loose end ''......???.....you know...lack of self esteem...delirium tremors and other sundry afflictions that come with parting with an old friend......so.... help is on its way.... Check options below.......all running when parked.... Always happy to help ..... Mike 1 Quote Link to comment Share on other sites More sharing options...
Dave Mac Posted September 24 Author Share Posted September 24 Great looking old tractors Mike but with due respect, I think I will pass on this outstanding opportunity. Still have my dear old Farmall M to keep me amused …………. To be honest I won’t lose any sleep if I never saw the inside of a steering clutch again. 🤠 Cheers Dave Quote Link to comment Share on other sites More sharing options...
Pukeko Posted September 30 Share Posted September 30 Back in the late 70,s I ran D6,s 7,s and D8K tractors in the oilfields in Northern Alberta winters.The company had about 40 plus machines,and for simplicity,ran Mobil 30 diesel oil in every thing on the tractors.Engines ,transmissions ,final drives and hydraulic systems .Worked great with no problems ,and was easier for the service guys,so the old BTD6 should do fine on about anything wet and slippery. Quote Link to comment Share on other sites More sharing options...
hardtail Posted September 30 Share Posted September 30 On 9/24/2023 at 12:12 PM, Dave Mac said: Great looking old tractors Mike but with due respect, I think I will pass on this outstanding opportunity. Still have my dear old Farmall M to keep me amused …………. To be honest I won’t lose any sleep if I never saw the inside of a steering clutch again. 🤠 Cheers Dave Gonna be way more room in that 18 SC compartment than a 6, you got this 😁 2 Quote Link to comment Share on other sites More sharing options...
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