Quote:
Originally Posted by andyathome
that's interesting? I was of the understanding it was like a regulating valve for pressure relief , that's how mine works..
how does your pump sound when there is no stick movement.
the noise should ( as mine dose) stay about the same wheter you are digging or not.
cheers andy
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The best way I can describe it is, the relief valve controls how much lifting power the machine has and the 4th valve is the flow control to regulate the speed of the functions. The more oil diverted to the tank the slower the functions. Less oil going to tank means more for the valve.
My pump sound also stays almost constant. I've placed a couple marks on the 4th valve servo coupler. Nice day today and Goose19. (Allen ) is in town to play in the pit so I'll get a good look of what it's doing while he operates.