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Spot the problem
Posted: Sun Jun 13, 2021 10:28 pm
by Eugen
Put the moldboard plow on the sleeve hitch and started to turn some soil in the hope of planting some potatoes. It was already dark, the kids went to bed. Went across the garden once and at the end of the row I pulled the plow up. When I did that there was a big spurt of oil to the left about in the middle of the tractor and the plow didn't move. Not happy about rotella t3 next to the garden, but at least it didn't happen in the garden!
Can you spot the problem?!

Good thing that I got those parts tractors.
Re: Spot the problem
Posted: Sun Jun 13, 2021 11:05 pm
by Timj
Yep, just when you think you're going to get something done.
I believe I've seen that this is a somewhat common failure. If you have a good one from a parts tractor, swapping it out is probably easiest.
I think I've seen where the cylinder was turned 90° and new holes drilled, or weld up the break and re-drill.

Tim
Re: Spot the problem
Posted: Mon Jun 14, 2021 11:55 am
by Eugen
ÀH guy wrote: ↑Sun Jun 13, 2021 11:05 pm
Yep, just when you think you're going to get something done.
I believe I've seen that this is a somewhat common failure. If you have a good one from a parts tractor, swapping it out is probably easiest.
I think I've seen where the cylinder was turned 90° and new holes drilled, or weld up the break and re-drill.

Tim
This one's snapped too badly to be fixed, I think. Will see how good the one in the parts tractor is for swapping. Well, it kinda serves me right to plow on a Sunday.
Re: Spot the problem
Posted: Mon Jun 14, 2021 4:49 pm
by DavidBarkey
Eugen wrote: ↑Mon Jun 14, 2021 11:55 am
ÀH guy wrote: ↑Sun Jun 13, 2021 11:05 pm
Yep, just when you think you're going to get something done.
I believe I've seen that this is a somewhat common failure. If you have a good one from a parts tractor, swapping it out is probably easiest.
I think I've seen where the cylinder was turned 90° and new holes drilled, or weld up the break and re-drill.

Tim
This one's snapped too badly to be fixed, I think. Will see how good the one in the parts tractor is for swapping. Well, it kinda serves me right to plow on a Sunday.
I ripped the bottom of the holes right out of the 3 point cylinder on Frankie shortly after I got it not knowing the PO. had bottomed out the releaf valve . redrilled 90 deg.s , Cleaned up the burrs , new Orings and put back in reset the releaf valve . That was 7 years ago . Only thing that changed is the orientation of the upper line .
Dave
Re: Spot the problem
Posted: Tue Jun 15, 2021 6:58 am
by Eugen
DavidBarkey wrote: ↑Mon Jun 14, 2021 4:49 pm
Eugen wrote: ↑Mon Jun 14, 2021 11:55 am
ÀH guy wrote: ↑Sun Jun 13, 2021 11:05 pm
Yep, just when you think you're going to get something done.
I believe I've seen that this is a somewhat common failure. If you have a good one from a parts tractor, swapping it out is probably easiest.
I think I've seen where the cylinder was turned 90° and new holes drilled, or weld up the break and re-drill.

Tim
This one's snapped too badly to be fixed, I think. Will see how good the one in the parts tractor is for swapping. Well, it kinda serves me right to plow on a Sunday.
I ripped the bottom of the holes right out of the 3 point cylinder on Frankie shortly after I got it not knowing the PO. had bottomed out the releaf valve . redrilled 90 deg.s , Cleaned up the burrs , new Orings and put back in reset the releaf valve . That was 7 years ago . Only thing that changed is the orientation of the upper line .
Dave
I also haven't checked the relief valve on this one. Could very well have been the problem. Not only the holes of the pin were ripped out, but the entire cylinder bottom was pushed out too! Crazy forces, welding on a Friday evening, or both?

doesn't matter, it held for 50 years.
Something strange about my tractors though, the hugging and what, is one mounting the other?!
Took advantage of this opportunity and after some greasy persuasion it came out.
Re: Spot the problem
Posted: Tue Jun 15, 2021 10:06 pm
by Eugen
The cylinder I got extra doesn't look so good. Quite a bit of pitting on the rod.
And after some wire brushing
Not ideal but it's all I got now.
Re: Spot the problem
Posted: Thu Jun 17, 2021 12:03 am
by Timj
It appears that these are a very simple hydraulic cylinder. 3 o rings and a seal. If it leaks or you think the ram is better in the broken cylinder, maybe you can just swap it out to the good cylinder. Never had one apart myself, but compared to regular hydraulic cylinders, it's pretty simple. 500psi is pretty low, if the seal is good maybe a little use will polish it up.

tim
Re: Spot the problem
Posted: Thu Jun 17, 2021 6:23 am
by Eugen
Tim, the cylinder is welded. I'd have to cut it and welded back together. Maybe I'll do it if it turns out to be leaky. Don't know if my welding skills are up to such a fine task though

Re: Spot the problem
Posted: Thu Jun 17, 2021 8:09 am
by Timj
Doesn't the base plate and the rod and piston just slide out the bottom of the cylinder?
Re: Spot the problem
Posted: Thu Jun 17, 2021 9:10 am
by Eugen
On the broken one does, but I didn't expect that'd be the case on the good one, I really thought the base plate is welded on. So that pin is the only thing that keeps it in place? Wow!

Now that I didn't expect. I'll try to disassemble the parts one today. Thanks Tim!
