Adding a rear valve to a Kubota B3030

[Wally01]

I would like to add a blb BM 40 series double spool valve to my B3030. It's a standard 3-position, 4-way open centre valve with an adjustable relief valve. In addition to the work ports, there are 2 inlet and 2 outlet ports. The B3030 has a rear hydraulic auxillary block with an outlet and an inlet. I was planning on plumbing the system so that the fluid went from the outlet of the auxillary block to one inlet port on the valve. A power beyond adapter would be used on one of the outlet ports and connected to the inlet of the auxillary block. Would the second inlet port on the valve be capped and the second valve outlet port be connected to the tractor tank port located on the right hand side of the transmission case and used a relief port? Input and suggestions would be greatly appreciated.

 

[dfkrug]

Would the second inlet port on the valve be capped and the second valve outlet port be connected to the tractor tank port located on the right hand side of the transmission case and used a relief port?

I am not sure what you mean by relief port. I do not know that brand of
valve....did you get any paper work with it?

2 IN ports prob means they are connected and equivalent, so I agree to
block one off. Are the ports marked? The 2 OUT ports will often have
"T" or "PB" or "BYD" or "OUT" on them. Only the low pressure return (T) can
(and should) go to the reservoir. If there is an adjustable relief valve on
the valve body, you will want to test the pressure after all is plumbed.

Some valves have a closed center plug or an open center sleeve that goes
into the high pressure OUT port.