Does komatsu sell pressure compensation seal, or we should buy the whole compensator already sealed?
They do sell comp seals.
But on the parts manual they don't give a part number. By the way, is there a maximum clearance between compensator piston and the sleeve. I have to reseal the swing compensator of a PC300-6 on the bottom side of the control valve, anytime I relief an actuator I have the swing slightly rotating.