Loader B2100 - Installing a new loader for the first time

[KubotaB1700]

Not sure what you mean by connecting them together ??...what did you connect the PB line to??...typically it would go to the 3PH or another valve and in that case the PB port on the new valve would go to the 3PH...

Congrats on 1700...it's a mighty beast for it's size and power...it can do anything if you take your time...is it gear or hydro?

It's plumbed just like the diagram you posted, goes into 040 fitting, there's just a quick connect on the PB line, when I got it the fitting was just sitting in the coupler, I connected it and the 3 point stops working. It's a hydro.

 

[/pine]

If it's plumbed correctly the 3PH should work...
Unless you mean the 3PH quits working when the loader is being used...this is typical...