Kubota KX 151 Pump

[Fuzzy]

I am trying to remove the triple hydraulic pumps from a KX 151. I have removed hoses and taken out the 4 securing screws. Should it just slide out off the splines ?? or do i need to remove bellhousing ?

 

[Kevtherev]

I am trying to remove the triple hydraulic pumps from a KX 151. I have removed hoses and taken out the 4 securing screws. Should it just slide out off the splines ?? or do i need to remove bellhousing ?

Not 100 per cent sure but think there's a coupling inside the bell housing. Hope this helps

 

[Fuzzy]

Not 100 per cent sure but think there's a coupling inside the bell housing. Hope this helps

So i guess i need to remove the bellhousing ?

 

[Dave W]

just a thought. if the pump is secured to the crank then it still won't come off by removing the bellhousing.
does the pump move at all with the securing bolts removed? is there any evidence it could be bolted to the bellhousing from the inside aswell?

 

[Kevtherev]

Some of the bigger excavators have a rubber/ nylon coupling as a damper in the bell housing.

 

[Dave W]

Some of the bigger excavators have a rubber/ nylon coupling as a damper in the bell housing.

they do but what I mean is that if the pump shaft goes through bellhousing and is secured to the coupling which in turn is secured to the crank the you won't be able to move the bellhousing anywhere without doing something to the coupling

 

[Fuzzy]

Pump moves away from bellhousing by about 1mm and can be rotated. Bellhousing is made up of 2 parts, so i'm gonna split them in the morning and see if the pump and outer bellhousing will pull away from the other part containing the flywheel.

 

[cps]

Not sure about the kx151 but the kx121 comes of without the bell housing removed! If you look there may be a hole in th bell housing to get at it bolts that hold on the pump drive!

Aiden

 

[Fuzzy]

Not sure about the kx151 but the kx121 comes of without the bell housing removed! If you look there may be a hole in th bell housing to get at it bolts that hold on the pump drive!

Aiden

Thanks, i will have another look in the morning. Is the KX 121 a 2 piece bellhousing ?

 

[cps]

Not sure from memory! It has a piston pump, I think you ll find the spines are just tight!

 

[Fuzzy]

Not sure from memory! It has a piston pump, I think you ll find the spines are just tight!

Ok, that is what i was thinking, maybe splines burred over. I am at point of making some kind of puller to pull it off. This one has 3 small gear pumps, and i don't think the pumps have been off before.

 

[Fuzzy]

Yes it was xxxxucking tight on the splines and now sits on the workshop bench. Pump are well worn. New triple pump on it's way from Whitehouse products. Thanks for your help

 

[walkervalentin]

Hy there.Have the same problem with the gearpump at KX151.Called whitehouse just for seals(we found leaking on gear by a tiny broken seal),unavailable(just remanufacture them by the model).We are desperate being stuck on a ditch.Is any chance to buy your old pump for getting one seal off,Fuzzy,please?

 

[Fuzzy]

Hy there.Have the same problem with the gearpump at KX151.Called whitehouse just for seals(we found leaking on gear by a tiny broken seal),unavailable(just remanufacture them by the model).We are desperate being stuck on a ditch.Is any chance to buy your old pump for getting one seal off,Fuzzy,please?

Call me 01234 708576 Ask for Ian

 

[Kevtherev]

There is a kubota pump on eBay at moment any help?

 

[Ziggo]

Yes it was xxxxucking tight on the splines and now sits on the workshop bench. Pump are well worn. New triple pump on it's way from Whitehouse products. Thanks for your help

Did you remove the belhousing to get the pump out? I am trying to remove mine also but it just moves 1 millimeter...

 

[Fuzzy]

Did you remove the belhousing to get the pump out? I am trying to remove mine also but it just moves 1 millimeter...

No, mine was very very tight on splines!!