Love the tractor, nightmare with the bobcat style quick couplers

[Shadow_storm56]

I love my Kubota M5n091 but my do I hate thoes bobcat style quick couplers.... every spring I take the loader off and ever fall I put it back on. Every fall atleast one of the fittings leaks really bad and needs to be replaced.... I get one attach/remove cycle out of thoes expensive couplers.

I did all of the things you never have to do with standard couplers like clean the ends really well, make sure all pressure is released...ect and I still get leaks.

Theres no room to fit the good style quick couplers that never leak nomatter what you do so I'm wondering if it's possible to get a hose end for thoes weird threads...

Then I can get 4 short hoses and replace these stupid, expensive, leaky couplers with the standard ones... I don't think there is a hose end unfortunately for that.

Is there any way to get these bobcat style couplers to work decent? The only thing I can think of is all summer we use it for spraying the orchard and maybe some chemical finds it's way in and hardens? Dosen't bother normal fittings but maybe these?

There has to be somthing better than new couplers any time I uncouple and recouple them

 

[North Idaho Wolfman]

You had me a little confused, but those are not Bobcat style couplers, they are flat face couplers.
Yes bobcat uses them, as do hundreds of other manufactures.
You can change out the couplers to Pioneer couplers you just need to match the threads.

 

[TheOldHokie]

I love my Kubota M5n091 but my do I hate thoes bobcat style quick couplers.... every spring I take the loader off and ever fall I put it back on. Every fall atleast one of the fittings leaks really bad and needs to be replaced.... I get one attach/remove cycle out of thoes expensive couplers.

I did all of the things you never have to do with standard couplers like clean the ends really well, make sure all pressure is released...ect and I still get leaks.

Theres no room to fit the good style quick couplers that never leak nomatter what you do so I'm wondering if it's possible to get a hose end for thoes weird threads...

Then I can get 4 short hoses and replace these stupid, expensive, leaky couplers with the standard ones... I don't think there is a hose end unfortunately for that.

Is there any way to get these bobcat style couplers to work decent? The only thing I can think of is all summer we use it for spraying the orchard and maybe some chemical finds it's way in and hardens? Dosen't bother normal fittings but maybe these?
P
There has to be somthing better than new couplers any time I uncouple and recouple them

We talking about the rear remotes that are mounted directly on the valves? If so I think they are a high dollar Faster push-pull agricultural coupler (3CFPV). Do they look like this? The specific part number should be etched on the body of the coupler. And yes, there are hose ends that match the port threads in the valve but you will lose the convenience of the push/pull connectivity.

EDIT - I see you are apparently talking about the couplers on the LA1854 loader. So now I am confused. Those look like normal AG couplers.

EDIT2 - I see there is a Multifaster quick coupler option for the loader. Is this what you are talking about?

Dan

 

[Shadow_storm56]

We talking about the rear remotes that are mounted directly on the valves? If so I think they are a high dollar Faster push-pull agricultural coupler (3CFPV). Do they look like this? The specific part number should be etched on the body of the coupler. And yes, there are hose ends that match the port threads in the valve but you will lose the convenience of the push/pull connectivity.

EDIT - I see you are apparently talking about the couplers on the LA1854 loader. So now I am confused. Those look like normal AG couplers.

EDIT2 - I see there is a Multifaster quick coupler option for the loader. Is this what you are talking about?

View attachment 112502

Dan

We talking about the rear remotes that are mounted directly on the valves? If so I think they are a high dollar Faster push-pull agricultural coupler (3CFPV). Do they look like this? The specific part number should be etched on the body of the coupler. And yes, there are hose ends that match the port threads in the valve but you will lose the convenience of the push/pull connectivity.

EDIT - I see you are apparently talking about the couplers on the LA1854 loader. So now I am confused. Those look like normal AG couplers.

EDIT2 - I see there is a Multifaster quick coupler option for the loader. Is this what you are talking about?

View attachment 112502

Dan

As mentioned above I guess they are called flat face couplers, they use them on this as there is no room for pioneer style unless you add short hose pieces that are the weird thread style. Also this loader is an M16 not a LA1854

Something about my environment is making them terrible, pioneer style never have issues but it would be difficult to swap them in here

 

[TheOldHokie]

As mentioned above I guess they are called flat face couplers, they use them on this as there is no room for pioneer style unless you add short hose pieces that are the weird thread style. Also this loader is an M16 not a LA1854

Something about my environment is making them terrible, pioneer style never have issues but it would be difficult to swap them in here

If its just flat face couplers whats so hard about replacing them? Threads can be matched up.

I know nothing about your tractor and when I tried to look up parts for an M16 loader Kubota said no such model number A picture or two of the coupler setup might get you some help.

Dan

 

[Shadow_storm56]

If its just flat face couplers whats so hard about replacing them? Threads can be matched up.

I know nothing about your tractor and when I tried to look up parts for an M16 loader Kubota said no such model number A picture or two of the coupler setup might get you some help.

Dan

Theres no room to fit anything directly so I need to make short stubby hoses that will fit that block and then put pioneer fittings on. The flat flace you get one attach/detach cycle and then they leak.... pioneer theres some older than me and they never leak. The unusual thread type is what may make that difficult.

 

[TheOldHokie]

Theres no room to fit anything directly so I need to make short stubby hoses that will fit that block and then put pioneer fittings on. The flat flace you get one attach/detach cycle and then they leak.... pioneer theres some older than me and they never leak. The unusual thread type is what may make that difficult.

I don't see a big problem with the threads. Good chance the ports are BSPP or metric. The male halves have a part number stamped on them and it appears to end in GAS which may be a Faster coupler with G thread. Makes me think your hoses are BSPT. Is that common in Canada? If you can get a full part number off one of the FEMALE couplers I might be able to ID the port threads in the valve.

Dan

 

[Shadow_storm56]

I don't see a big problem with the threads. Good chance the ports are BSPP or metric. The male halves have a part number stamped on them and it appears to end in GAS which may be a Faster coupler with G thread. Makes me think your hoses are BSPT. Is that common in Canada? If you can get a full part number off one of the FEMALE couplers I might be able to ID the port threads in the valve.

Dan

They use an uncommon type. The entire manifold is unusual... for now I have a rag duct taped to it to catch the leaks

 

[TheOldHokie]

They use an uncommon type. The entire manifold is unusual... for now I have a rag duct taped to it to catch the leaks

Uncommon is not unobtainable. What's the number on the couplers?

Dan

 

[Shadow_storm56]

Uncommon is not unobtainable. What's the number on the couplers?

Dan

Thats the one end That's weird. I basically need that in a hose end so I can put stub hoses and then use pioneer fittings. F. 20B0 is on the one end I see.

 

[TheOldHokie]

Thats the one end That's weird. I basically need that in a hose end so I can put stub hoses and then use pioneer fittings. F. 20B0 is on the one end I see.

It's some type of male o-ring boss fitting. They come in a variety of standard styles and are commonly used on ports in hydraulic valves. You may or may not be able to get it in a hose end fitting but if not a suitable port adapter should do the job.

What's the full part number stamped on it?

Whats the diameter of the male thread?

Dan

 

[TheOldHokie]

Thats the one end That's weird. I basically need that in a hose end so I can put stub hoses and then use pioneer fittings. F. 20B0 is on the one end I see.

Looking closer at both pictures the female half is screwed into the valve. Your picture is the male tip off the end of the hose?

Dan

 

[TheOldHokie]

Thats the one end That's weird. I basically need that in a hose end so I can put stub hoses and then use pioneer fittings. F. 20B0 is on the one end I see.

I am not clear what you are showing in the picture. Are those screw to
connect flat face couplers like this?

 

[whitetiger]

Also this loader is an M16 not a LA1854

What brand of loader do you have?

 

[Shadow_storm56]

I am not clear what you are showing in the picture. Are those screw to
connect flat face couplers like this?

View attachment 112763

View attachment 112761

No not like that, the side you see goes into the block. Other side is a standard coupler

 

[Shadow_storm56]

What brand of loader do you have?

Pretty sure it's kubota but maybe theres fine print of another brand somewhere

 

[Daferris]

Also is the leak the connection that slides on the connector or is it the o ring for the connection to the manifold?
Last thought is the internal of the female coupler would be an o ring for sealing to the male side connector. Is there a burr or something sharp that is damaging the o ring when your re connecting the couplers?
Just some random thoughts that might help....

 

[Shadow_storm56]

Also is the leak the connection that slides on the connector or is it the o ring for the connection to the manifold?
Last thought is the internal of the female coupler would be an o ring for sealing to the male side connector. Is there a burr or something sharp that is damaging the o ring when your re connecting the couplers?
Just some random thoughts that might help....

It's always the side on the tractor with the 2 orings that causes the leak. Male side? But also female because the center is female. We had changed all new couplers on both sides and it still happens each year.

What I think is happening is these couplers are very very very sensative to any dust or anything so during the summer when the loader is disconnected the end on the loader is hanging out there in the Machine storage area and dust works it's way in that end. On the tractors side theres the orchard sprayer so I think spray works it's way down in and hardens. So when I put the loader on in the fall it screws up everything. There was supposed to be a cover for both ends but it never came.

 

[Daferris]

I got my flat face connectors from Summit Hydraulics. They also sell the rubber covers for them. You can see what they look like on this page... https://summit-hydraulics.com/produ...hydraulic-flat-face-iso-16028-quick-couplers/