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Case 300 fluid type

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Les Nelson

06-14-2003 07:05:02

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Have an IT shop manual but it has no reference to the type of fluids used. Frustrating. Looking for the correct type of fluid for the fill hole in front of the transmission. I believe it is hydrolic. Doesn't the 3 point use this for its resivoir? Thanks for any help in advance. Les.

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C. Amick

06-17-2003 14:19:16

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Re: case 300 fluid type in reply to Les Nelson, 06-14-2003 07:05:02

I use straight 30W motor oil in the hydraulic reservoir. It also lubricates the triple range gears, so check the level periodically. Keep in mind that you will likely loose some of this oil into the rear end due to leaking seals on your rear lift. It will eventually thin down your transmission gear oil.

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Kennyp

06-14-2003 10:24:26

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Re: case 300 fluid type in reply to Les Nelson, 06-14-2003 07:05:02

YES. On my 300 round nose with 3 speed. The fill hole is on the 3 speed cover. The front cover. The dip stick is the little pipe plug at the front of the 3 speed cover. The same compartment runs the hydraulics, including the 3 point, and lubes the 3 speed, and a bunch of things. I run HTB, any good quality, all though some here would recomend Case. The rear transmission and differencial has another filler back of the shifter. Again, I use HTB. BTW; the IT manual says (if I read it right) that the hand (transmission) clutch is a "dry" clutch. I got news for them. Proper level of the hyd fluid comes up about half way on the past center clutch.

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John Saeli

06-14-2003 19:09:34

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Re: Re: case 300 fluid type in reply to Kennyp, 06-14-2003 10:24:26

Hey Kennyp; Now don't go spreading bad habits around. The rear housing should be filled with 85W140 gear oil. Much more protection for the gears & bearings that hyd. fluid.

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Here we go again

06-15-2003 11:58:24

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Re: Re: Re: case 300 fluid type in reply to John Saeli, 06-14-2003 19:09:34

Here we go again. What do you think HTB was invented for? When I got my 300 it had HTB in the rear end so I continued with that. If it had had 90/140, I would have used that. I have a question: If you had an old, wood wheeled wagon, and the operators manual say "use only axle grease" would you hunt up old axle grease or would you use a modern wheel grease? In those days they only had axle greas, lard, tar etc. When the 300 came out we used transmission grease for gears and motor oil for hydraulics. Some times hyd fluid, but that was too thin for hot farm work. I've been burned so many times on "advice" webs that I tend to be very carefull. If you read my post again, you will see that I said " I use". You are the one who says "you are supposed to use". I feel that is not all ways correct. I'm sorry to all you good people here for coming up so fast and hard. It'd just that every time I open my mouth, some body points out that I am only 99.94 percent right.
Have a good day..... old man Kenny

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John Saeli

06-15-2003 17:14:44

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Re: Re: Re: Re: case 300 fluid type in reply to Here we go again, 06-15-2003 11:58:24

Aww Kenny, don't get sore.. The manual does say to use gear oil in the rear housing. After a few hours work, look at how thin that 10W hyd fluid is. 85W140 is multi-grade like motor oil. When cold it offers the flowability of an SAE 85. When warm it offers the protection of a SAE 140. Even in my later straight gear, non power shift tractors, I add 85W140 to the HyTran to give it more body. My 730 with close to 7,000 hours has never had the transmission cover off. BTW, what is HTB??

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not all that sore

06-15-2003 19:56:46

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Re: Re: Re: Re: Re: case 300 fluid type in reply to John Saeli, 06-15-2003 17:14:44

I'm just trying to give you a hard time. HTB...hyd/tranmission/ something...generic for brand names like high gard, TCH?? etc. When I say that I mean any one of them. Right now I'm using COOP, but hate the green color. It makes a mess when mixed with red. :-) . When I bought my 930 CK in 68, it had TCH for everything. Hydraulic, gear box, rear end. Since it was a new thing then, all us farmers discussed it a bit. We/I decided that if it was good enough for those big bull gears for hours at a time (many days at over a 100 degrees F) that it was good enough for pickup tranmisions. I used it there too. Very nice in the winter below zero. I think I put some thing like 4000 hours on the 930 and then traded in in on a 1200. It to used the same hyd/trans oil all the way through, but not the axles. What I am not mentioning is hypoid rear ends. I have all ways been told that they are different. Like most, I am sloppy in my use of names...transmission fluid for cars and I think Case-o-matic. Then HTB which is the about the same thing only heavier. Then gear oil of many types and weights. I have in my shop a 2 gal jug of "hydraulic oil" which plainly says "not for use as a gear lub", so there is that too. So it would be bad for me to just use the name "hyd oil". That real thin auto transmission fluid seems to work for gears OK in 300 HP cars and trucks. But of course they run it through a cooler. Man, am I running on, but the only place I know where my friends us 85/140 is in sprinkler gear boxes. Doesn't run out so fast in the winter. Hope all is well....Kenny

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Joe (Wa)

06-14-2003 23:25:28

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Re: Re: Re: case 300 fluid type in reply to John Saeli, 06-14-2003 19:09:34

The factory oil was SAE 90 in the transmission and 10 wt motor oil in the torque tube with recommended alternate ATF type A. Personally I prefer 80-90 in the transmission and a general purpose hydraulic oil in the torque tube mainly for the anti-foaming additive. To help beat up on Kenny some more, the engine clutch is a dry clutch and the optional constant running pto "transmission" clutch is an oil bath type. On the other hand I don't see any problem with the oil he has elected to run in his transmission. Joe

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Les Nelson

06-15-2003 09:25:54

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Re: Re: Re: Re: case 300 fluid type in reply to Joe (Wa), 06-14-2003 23:25:28

Thank you for all of your replies. Elmer, the guy who sold me the tractor, told me to use hyd fluid up front and gear oil in the rear. Thanks again for all of your help.

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kennyp

06-15-2003 12:11:15

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Re: Re: Re: Re: Re: case 300 fluid type in reply to Les Nelson, 06-15-2003 09:25:54

Hey Les, Don't get excited with us old guys. go along with that. I would just say "hyd fluid" could mean auto type or the heavier stuff (HTB/TCH). The automotive type might be a little thin. Just look at what is in it and continue. BTW: HTB comes in all colors these days.

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