Case VAC PTO re-assembly

Emmanuel

New User
Hi,

I have a 1950 Case VAC.
I was finally able to put my PTO back together, but I'm not sure how to fill it back up with oil. Any hints out there? Also, the place where I bought the oil said it will probably take about 5 gallons. Is that correct? I know it's important to not over or under fill it.

Thanks,
Emmanuel
 
Do you have an operators manual? The manual tells you where to fill it and check it and what kind of oil. Be carefull putting in 5 gallons, it may not take near that. I have a manual out in the shop but someone might chime in with your answer. I'd suggest getting a manual if you don't have one. Try E-Bay or call John Salei at 315-585-9826, he should have a manual. Dick, OR.
 
I was able to download a Manual online. University of Nebraska has one in their digital archives. I found it by Googleing "VAC" I think, it was two or three years ago. Per that manual, 7 gal in the crankcase, two gallons in the torque tube.
 
so I just add the oil for the pto where I add oil for the transmission? I couldn't see any connection between the transmission and the differential chamber where the pto is.
 
The transmission, differential, pto are all one oil compartment. The dipstick is on the plug you see on your shifter cover. The factory oil was 90 wt gear oil. Capacity 7 gallons, although the axles don't always drain completely so put 5 gallons in and add checking the dipstick, usuasly end up 6+ gals. There is only one mark on the dipstick , that is the full mark.
 
Emmanuel, it just occurred to me that you may have drained the oil via the pto cover instead of the drain plug on the bottom of the transmission. The factory oil capacity is 7 gals when dry. If I were you, I would pull the drain plug and start out again with all fresh oil. Yes you fill through the dipstick plug.

Joe
 
Joe is correct, 7 gal and not the 11 I stated before. It helps to read the manual and not count on my getting old memory.
 
Joe,

I did indeed empty the differential/pto compartment throught the back pto cover. I gushed out and then and scooped out the rest. I was able to add a couple of gal before it would spill out and then I closed the back cover.
I just drained the transmission oil and filled it back up. However, the level stays constant which tells me that no oil is going into the differential/pto compartment. So now I have too much oil in the transmission and too little in the pto. I even drove it some and ran the pto some hoping it would ove the oil around, but no change. Are you sure there is no other place to add oil to the pto compartment?

Thanks,
Emmanuel
 
VAC has flooded axles, when you are filling the last 2 gals or so there is very slow increase in dipstick level owning to increased volume of the axle cavities. The transmission, differential, and PTO are all in sump communication. If you drained the transmission at the drain plug, filled 6+ gals oil and have oil level at the full mark on the dipstick you have proper level in all compartments.

Here is a link to the VA series manual that may be the one RJKeith mentioned. This manual covers tractors up to early 1949 before the Eagle hitch and engine mounted hydraulic oil pump. There is some useful general info for you 1950 tractor but there was many changes in oil and other upgrades late 1949 and later tractors.

This page is from a VA series service manual and applies to late 1949 and later tractors.
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http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article 1443&context tractormuseumlit
 
Thank you Joe for the feedback. The thing I'm uncomfortable about is that I have about 7 gallons of dirty oil I drained out. I put 2 back in the pro compartment and about 2 gallons in the transmission which is more than full right now. So there's another 3 gallons that needs to go in 'somewhere'
Emmanuel
 
(quoted from post at 00:33:01 08/08/15) Thank you Joe for the feedback. The thing I'm uncomfortable about is that I have about 7 gallons of dirty oil I drained out. I put 2 back in the pro compartment and about 2 gallons in the transmission which is more than full right now. So there's another 3 gallons that needs to go in 'somewhere'
Emmanuel

Emmanuel, How do you see that the transmission is overfull, is the oil level above the full mark on the dipstick? Are you sure you are not putting the oil in the torque tube? Torque tube capacity is 2 gallon, only reason I am asking.

All the oil for the transmission, differential, PTO is filled through the dipstick plug on the transmission shifter cover. The differential is referred as final drive in the PTO page I posted.

Another question, your tractor serial nr VAC 5454742 is for the 1950 model year. Do you have a Eagle hitch with the hydraulic pump on the right front of the engine?

Here is a page with transmission oil capacity and one with torque tube fill and oil info. Your tractor will not have the filter assembly shown on the page if it has the original factory torque tube casting nr VT596. If you have a Eagle hitch you can use a general purpose hydraulic oil or some guys here use 10w30 engine oil in the torque tube.

I can't make these pics any clearer. Takes about a 200 zoom for me to read them. If you can't read them let me know, I'll type in the info.
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25630.jpg
 
Thank you Joe!,

The confusion was indeed that I thought the I was filling the transmission, but I was filling the torque tube compartment.

Thanks again for taking to time to guide me through this!!
Emmanuel.
 
"The confusion was indeed that I thought the I was filling the transmission, but I was filling the torque tube compartment."

Emmanuel, If you have the hydraulic pump that is mounted on the right front of the engine you need to have a low viscosity oil in the torque tube like hydraulic oil, 10w or 10w30 engine oil.

If you don't have the engine mounted hydraulic pump and are not using the torque tube as a hydraulic oil sump, leave the 90 gear oil in there.

You can drain the torque tube at the plug on the bottom just in front of the flange that mates the transmission to the torque tube. No need to flush some mix won't hurt anything.

Joe
 

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