1936 farmall h hydraulic issue

pb8689@aol.com · Jun 25, 2018

I just recently acquired a 1936 farmall h for moving hay around the property and the 3 point will not lift a hay bale. It will lift it about a foot but not completely off the ground, if I use a floor jack and lift it the tractor will hold it up but it wont lift the bale on it's own, any suggestions? I'm leaning towards getting new bigger hydraulic cylinders to see if it would help but I just wanted to get some other input before I pulled the trigger on that.

THolmer · Jun 25, 2018

First off it can't be a 1936. Because they did not make H's till 1939. Have you checked the hydraulic oil level? You my also need to add a auxiliary tank for more oil capacity.

pb8689@aol.com · Jun 25, 2018

(quoted from post at 06:37:52 06/25/18) First off it can't be a 1936. Because they did not make H's till 1939. Have you checked the hydraulic oil level? You my also need to add a auxiliary tank for more oil capacity.

I'm just going by what I was told on the year, the oil is full but it does leak under the belly pump

pb8689@aol.com · Jun 25, 2018

pb8689@aol.com · Jun 25, 2018

pb8689@aol.com · Jun 25, 2018

D Slater · Jun 25, 2018

If fluid is okay get a pressure gage and check pump pressure. If pump had no work in past the pressure could be 550 or lower. Later pumps were increased to around 850. Hydraulic cylinders sized and made for high pressure also don't work as good on a H. Unless light bales, don't know how you will keep the H front on the ground unless weighted if it does lift them.

Michael Soldan · Jun 25, 2018

I seems to me that your set up for spearing is too far from the lift source. Think of it as a simple lever, the closer the weight is to the
fulcrum the easier it is to lift, as the weigh is placed further from the fulcrum the lift is more difficult.Your H is pushed to the max on
those bales.

Charlie M · Jun 25, 2018

Couple of things - has it ever lifted the bales before - maybe too much weight for a belly pump? Second thing - what oil are you using. Everyone wants to put hydraulic oil in these old pumps but they were made to have 30 wt non detergent oil. Hydraulic oil with a lot of use can heat up enough it won't lift anything. I had an IH mechanic tell me one time if 30 wt didn't work try 40 wt. I have 30 wt in my H and have lifted plows all day without a problem - couldn't do it with hydraulic oil in the system. Tried it so I know.

pb8689@aol.com · Jun 25, 2018

We planned on adding weights so that isn't too big of an issue. If I have one of the older ones that puts out 550 can I swap out to a newer pump?

Janicholson · Jun 25, 2018

Replace the 2 cylinders shown under the mechanism. They are too small in diameter. I would use at least 2.5 inch diameter cylinders in that location to allow lifting. The lift speed is not as important in this case, not a 50 bales a day operation. Then fix the pump if it leaks. Jim

Janicholson · Jun 25, 2018

Replace the 2 cylinders shown under the mechanism. They are too small in diameter. I would use at least 2.5 inch diameter cylinders in that location to allow lifting. The lift speed is not as important in this case, not a 50 bales a day operation. Then fix the pump if it leaks. Jim

pb8689@aol.com · Jun 25, 2018

I just got the tractor so I'm not sure if it's ever been able to lift weight I'm planning on draining the fluid tonight and putting 30wt oil in it and seeing what it does.

pb8689@aol.com · Jun 25, 2018

I'm going to try putting fresh 30wt oil in it and address the leaks but if that doesn't fix it the cylinders were the next thing to try

John M · Jun 25, 2018

I think youre pushing the limits of the pump to try and lift those bales.

rustyfarmall · Jun 25, 2018

If you ever do get the H to lift those bales, you will not be able to steer the tractor. The front wheels will be totally OFF the ground.

Tom Dowling · Jun 25, 2018

before you spend the money on new cylinders check clearance... doesn't look like much

Farmaller · Jun 25, 2018

I think you might cut those bales in half and then maybe you could pick them up with an H, and if you weight the front end it will probably break that poor ole H in half. I'm sorry but when I saw pick I busted out laughin

David G · Jun 25, 2018

Two things, the tractor probably has the low pressure 900 PSI pump, so not enough pressure to lift, and if so the bale is too heavy for tractor to move without ballast on front.

caterpillar guy · Jun 25, 2018

I think another tractor is in your future. Much more practical from an efficiency stand point.

Brendon-KS · Jun 26, 2018

I have a Farmall 350 which is several generations newer than the H (but largely the same basic tractor) and use it to lift and move 5x6 round bales weighing up to 1500 lbs. The tractor is quite a bit heavier than an H, has a much more capable hydraulic system, and a more rugged hitch. Even so, lifting these bales gives my tractor all it can handle. Even with the added weight of a wide front end it was hard to keep the front wheels on the ground until I added a loader. If I had to do this kind of work frequently I'd be looking for a larger tractor as I'm sure it is exceeding the design intent of the 350. Long story short, I believe you're expecting too much from your H in asking it to do what you're attempting.

PretendFarmer · Jun 26, 2018

(quoted from post at 02:51:42 06/26/18) and if you weight the front end it will probably break that poor ole H in half.

I doubt it. Tractor pulling puts far more weight on the rear end than lifting a 1500lbs bale and I've never seen an H break in half at a pull.

To lift those bales you will need bigger hydraulic cylinders. Other option might be a stronger hydraulic pump perhaps one driven off the pto, the belt pulley or electro-hydraulic.

used red MN · Jun 26, 2018

Yes on swapping the pump out, but I have no idea how to tell which is which. May be a simple as just swapping in the higher pressure relief spring. Also lubing all the pivot points would go a ways as far as helping with what it will lift. Just some oil like what you drain out in a squirt can. I will research a little more and add a reply with some IH parts diagrams. Changing the cylinders may be necessary, however I think the lift all unit has plenty of oil capacity in its built in reservoir to do this task. I agree you are at the max of the capability of an H. I think it will do the job but you will have to use some common sense. This is not a rig you should take out on a public road with a bale on it.

BarnyardEngineering · Jun 26, 2018

The 3pt is a homemade setup using tiny little snow plow angle cylinders for the lift. It has very little lifting capacity even with everything working right.

The old Saginaw design used dual 4" cylinders, and could lift up a Farmall C or Super C, as I recall from a post on here years ago.

Unfortunately there is no way to put much bigger cylinders on there without major modifications to the lift.

used red MN · Jun 26, 2018

Number 13 in the attached diagram appears to be the relief spring of the lift-all pump. If your pump is putting out near 900psi then the pump is fine. It is the cylinders are two small at that point. Good luck.
H lift all parts diagram

gene bender · Jun 26, 2018

yes a bigger dia cycl will solve the problem mite need two the larger the dia the more lift at the same pressure. So pressure is not your problem just do the math.

1936 farmall h hydraulic issue

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