About hydraulic pump?

[Mercvrinvs]

Hello,
Do you think it's possible to adjust the flow rate of the pump?

Yesterday I disconnected hydraulic line from pump to rear 3pt hitch cylinder & the fluid leaked slowly....

Maybe the pump pressure the fluid just when the line is closed?

Or maybe there's a problem with my pump?

Sometimes when implement is attached, the lift is 'jerky', not smooth !

But maybe it's just because the fluid isn't hot, I really don't know???

If someone could give me an advice...
Thanks.

(Sorry it's my first tractor.) ;p

 

[Tx Jim]

How long since hyd filter was changed?

 

[Bluegill]

How long since hyd filter was changed?

Filter & fluid?

 

[Kubota Newbie]

Answer to first question .... NO. Someone who is skilled can however adjust the pressure, but it's not usually a good idea. Jerkyness is not because of the pump, it's the controls. The pump flow rate is constant for a given RPM unless it's a two stage pump (because pump speed is fixed to engine speed). But normally, jerky ups and downs are symptoms of the valves or control linkage.

 

[North Idaho Wolfman]

If you pulled the output line off the pump and only get a small amount of flow out of it, you have either too low of fluid, damaged (sucking air), a plugged intake screen (if equipped), a plugged intake filter (if equipped), and or blown seals, broken or damaged pump, or broken or damaged input shaft or gear.

 

[hillbillyss]

also hydrolic line can be collapsed inside blocking fluid if very old.

 

[Mercvrinvs]

Sorry.

I just replaced fluid & filter for few days ago...

It's just a big review !

It will be hard, I think... :/