A system (10) for bleeding a valve in a vehicle hydraulic system including a hydraulic directional control valve (12), in particular a selective control valve, a main spool (18) for controlling communication between a pump (32), a hydraulic reservoir (28) and first and second work ports (48, 50). The main spool (18) is movable from a neutral position to an extend position and to a retract position. The main spool (18) is also movable to respective first and second bleed positions wherein the respective work port (48, 50) is communicated with the hydraulic reservoir (28) before the other work port (50, 48) is communicated with the pump (32).
System for bleeding a valve in a vehicle hydraulic system
System zum Entlüften eines Ventils in einem hydraulischen System eines Fahrzeugs
Système pour purger une soupape dans un système hydraulique de véhicule
2017-07-05
Patent
Elektronische Ressource
Englisch
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