QA Loader Frame Latch Pin Safey Modification

[ovrszd]

A while back an operator started a thread about his LA1153 Loader on an M6040 coming loose from the tractor during use. He was pushing snow with the FEL and thinks the chatter of running the bucket on frozen ground caused the latch pin to jump out of it's holder, which allowed the large pin to slide out and release one side of the loader frame from the tractor. Did major damage to the loader frame. A discussion started in regards to latching the pin. Here's the link to that thread if interested.

http://www.tractorbynet.com/forums/owning-operating/300056-la1153-loader-kubota-m6040.html


Here's my solution along with pics.

I went to the local Tractor Supply store yesterday and bought a couple push springs, $1.23. I had washers and cotter pins already. Doesn't take a strong spring since all it's gotta overcome is brief vibration. Here's a pic of my parts list.





Here's a pic of the factory setup before modifying. Only thing holding the small pin in the latch hole is gravity. To remove the loader you lift the small pin which allows the large pin to slide out toward you.





First I drilled a hole in the small pin that the cotter pin would go thru. Then I installed the spring, washer and cotter pin so the spring is compressed and holding the small pin down in the safety latch hole. Large pin can't come out.







To remove the loader, lift the small pin, holding it up while you slide out the large pin.




Here's a distance shot so you can see how the loader frame attaches. I believe NH uses this method as well,, maybe others.

 

[murphy1244]

Very nice and simple, good job.

 

[ovrszd]

Thanks Murph. Can ya tell I'm a little shop bored???

 

[DT86]

Very nice indeed, as always. :thumbsup:

I might try this myself.

 

[ovrszd]

Thanks Derek. Yep, pretty simple.

I'd never heard of this happening to anyone before. But when you look at the simplicity and cost of a fix, it's a no brainer. I use the snot out of my loader as I know you do. If this could happen to anyone it would be us!!!

 

[DT86]

I caught my big pin 1/3 of the way out once. It seemed so unlikely and I thought "well that'll never happen again". While it hasn't happened to me it has obviously happened to others.

I have said before, I always seem to break things the parts man has never ordered or seen break before. Yes, if it can happen it will happen to me, usually on Saturday, 10 min after 12pm!

 

[k0ua]

It never happened on any of the Kubota's I owned, but apparent it has happened. Your fix is simple and elegant and your illustration's and write up is first class.:thumbsup:

 

[ovrszd]

Thanks James.

 

[Zebrafive]

Great solution, and the best part is no extra parts to lose. Well done.

 

[gullagej]

Very nicely done! Yes, that's what my loader mounting looks like. I just took pictures of the failure today- been waiting for some decent weather. I will definately use your corrective action idea when I get it fixed. Thank you!

A while back an operator started a thread about his LA1153 Loader on an M6040 coming loose from the tractor during use. He was pushing snow with the FEL and thinks the chatter of running the bucket on frozen ground caused the latch pin to jump out of it's holder, which allowed the large pin to slide out and release one side of the loader frame from the tractor. Did major damage to the loader frame. A discussion started in regards to latching the pin. Here's the link to that thread if interested.

http://www.tractorbynet.com/forums/owning-operating/300056-la1153-loader-kubota-m6040.html


Here's my solution along with pics.

I went to the local Tractor Supply store yesterday and bought a couple push springs, $1.23. I had washers and cotter pins already. Doesn't take a strong spring since all it's gotta overcome is brief vibration. Here's a pic of my parts list.





Here's a pic of the factory setup before modifying. Only thing holding the small pin in the latch hole is gravity. To remove the loader you lift the small pin which allows the large pin to slide out toward you.





First I drilled a hole in the small pin that the cotter pin would go thru. Then I installed the spring, washer and cotter pin so the spring is compressed and holding the small pin down in the safety latch hole. Large pin can't come out.







To remove the loader, lift the small pin, holding it up while you slide out the large pin.




Here's a distance shot so you can see how the loader frame attaches. I believe NH uses this method as well,, maybe others.

 

[ovrszd]

Great solution, and the best part is no extra parts to lose. Well done.

Thanks. Yeah, first I thought just drill a hole and use a pin clip. I know me. I'd lose the pins or forget to install them. I drop my loader a lot.

 

[ovrszd]

Very nicely done! Yes, that's what my loader mounting looks like. I just took pictures of the failure today- been waiting for some decent weather. I will definately use your corrective action idea when I get it fixed. Thank you!
View attachment 353920View attachment 353921

OH MY GOD!!!! Did it bend your heavy cast piece that bolts to the tractor???? I thought you meant it bent the loader frame beam!!!! Oh man, that's gonna be hard to fix. Please update your thread with pictures of the fix. That will be challenging for a metal shop. Anxious to see how they do it. Very sorry for your dilemna.....

 

[DT86]

OH MY GOD is right!

 

[gullagej]

Yes, it's bent about 10-15 degrees. Not sure if it's a casting or a forging but either way, it will be a challenge and I will post the result and how it was done. Thanks again for the elegant corrective action!

OH MY GOD!!!! Did it bend your heavy cast piece that bolts to the tractor???? I thought you meant it bent the loader frame beam!!!! Oh man, that's gonna be hard to fix. Please update your thread with pictures of the fix. That will be challenging for a metal shop. Anxious to see how they do it. Very sorry for your dilemna.....

 

[wmonroe]

ovrszd, very nice write up and fix for this issue. I never really thought it could happen but now I'm going to get some springs and put them on the loader and backhoe pins. Are the springs you bought stainless? I'd hate to have rusty springs on my loader pins.

 

[TripleR]

Agree with all the others Richard a great idea and simple enough maybe even I can do it; OK, I'll have one of my sons do it but still...:thumbsup:

 

[ovrszd]

Thanks for the compliments guys, but we owe this modification to gullageje, he suffered the pain for our gain.

wmonroe, you must be slightly OCD like me. Nope, I didn't use stainless steel springs, but if mine rust I'll swap them out. Can't have that!!!!

 

[k0ua]

Thanks for the compliments guys, but we owe this modification to gullageje, he suffered the pain for our gain.

wmonroe, you must be slightly OCD like me. Nope, I didn't use stainless steel springs, but if mine rust I'll swap them out. Can't have that!!!!

Paint them.

 

[ovrszd]

Paint them.

I sure hope my Wife don't come out to the shop and catch me painting springs...... She already thinks I'm a little weird...... OKAY JAMES,,, I'll paint em.

 

[k0ua]

I sure hope my Wife don't come out to the shop and catch me painting springs...... She already thinks I'm a little weird...... OKAY JAMES,,, I'll paint em.

You can paint them with clear Krylon if you don't like the orange look, and the wifey will never know unless you get caught.!