Case IH 75A Loader Bucket Quick Release Issue

[LoveMy444]

Today, I was moving some of my implements around and when I went to connect the loader bucket (that came with the tractor) one of the quick connect levers that secure the bucket would not engage.

I thought perhaps I did not have the bucket on straight and I disconnected and reconnected it, and the problem happened again.

I removed the bucket and tried operating lthe lever with nothing connected and it would not engage. The other lever engages and disengages fine.

Any thoughts what the issue might be and how I would repair it?

Thank you for your assistance.

 

[Jim.ME]

All we can do is to guess something might be bent, linkage out of adjustment, dirt or rust in the wrong place blocking movement, etc.

Sometimes visual inspection is needed to start with. I am guessing this might be a skid steer type quick attach (aka SSQA). With the bucket removed, I suggest you carefully compare what you see when move you move the lever on the side that will latch to the one that won't latch. You should be able to find where it is binding/stopping.

Do you know the manufacturer and model of your SSQA? Some good pictures of the quick hitch adapter and the linkage from the handles all the way to the pin that locks the attachment on, might get some ideas of things to check, after seeing the linkage of yours.

 

[used red MN]

Any thoughts what the issue might be and how I would repair it?

Thank you for your assistance.

Hello L.M.444, welcome to YT! Photos of the items in question might help, especially for the sake of suggesting correction. I might add that paint may be an issue, getting scraped of and building up in the mechanism. Spraying the moving/sliding parts with penetrating oil may help this type of problem.

 

[BarnyardEngineering]

You're going to have to hone your powers of observation, as there are several moving parts that could be the culprit.

Start by looking at the one that works. Follow the linkages. Crawl all over it, stand on your head if you need to, LOOK. See what moves when you move the lever, and how it moves. Feel the lever as you move it making note of the amount of effort it takes and whether that changes as you move the lever.

Now go to the one that doesn't work. Start by feeling it as you move the lever. It should feel the same as the other one at the same points. Does it feel easier, or harder to move? Easier means something may be disconnected. Harder means something may be stuck. Now crawl all over this one, and LOOK. What's different, other than it being a mirror image?

Most likely this is a factory quick attach, which you can find the parts book for at mycnhstoreDOTcom.

Since you say you have two levers, it's probably a SSQA style like this. It's a very simple setup.

 

[LoveMy444]

You're going to have to hone your powers of observation, as there are several moving parts that could be the culprit.

Start by looking at the one that works. Follow the linkages. Crawl all over it, stand on your head if you need to, LOOK. See what moves when you move the lever, and how it moves. Feel the lever as you move it making note of the amount of effort it takes and whether that changes as you move the lever.

Now go to the one that doesn't work. Start by feeling it as you move the lever. It should feel the same as the other one at the same points. Does it feel easier, or harder to move? Easier means something may be disconnected. Harder means something may be stuck. Now crawl all over this one, and LOOK. What's different, other than it being a mirror image?

Most likely this is a factory quick attach, which you can find the parts book for at mycnhstoreDOTcom.

Since you say you have two levers, it's probably a SSQA style like this. It's a very simple setup.
View attachment 153114

This is exactly the diagram I was looking for and I will give it one more look over I have also include photos.

First one attached to the bucket showing the the lever on left that will not engage
Second (no attachment connected) The lever that will not engage even without an implement.
Third the lever that will engage.
Fourth looking into the pin hole of side that will not engage.
Fifth Side that will engage.

 

[Jim.ME]

Is the spring length the same on both sides? If the left one is shorter it might be lifting the pin higher out of the hole then the pin cocks sideways when you try to latch it. I have seen that happen. If the latch handle travels further when unlatched could lift the pin too high as well. Can you get a long screwdriver or bar in there and pry the pin towards the center of the tractor as you try to latch it? The spring will push the top of the pin to the outside as the handle starts to travel to latch the pin, before the linkage cams over.

Is the spring compressing as you move the handle to latch? If the spring isn't compressing, the screw and pivot pieces may have burrs on them and are catching, acting like a solid connection.

 

[trackrat]

The latch pins are very bad to freeze up try panther pee and a gentle hammer

 

[LoveMy444]

Good Afternoon Gents,

First, thank you to everyone for your assistance. This website is always great.

The mystery is solved (in two parts)

1. When I removed the blade, unbeknown to me, there were some burrs and power coating pieces on the part where the pin engages Several tiny pieces got pulled up when I disengaged the pin. This caused the pin to bind and prevent it from traveling down. and engaging

2. The pressure on the handle pushed the ring (see attached image in red) out of alignment and was inhibiting the handle from engaging the spring and pin.

Another tractor mystery solved thanks to all of you and some help from my nephew.

Have a good weekend and be safe!