ZX200LC ZX240-3G excavator main control valve adjusting the spool valves for

ZX200LC ZX240-3G excavator main control valve adjusting the operation of the first and second spool valves for #Hitachi #valve
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When encountering a pause in the retraction of the arm on the HITACHI ZX200LC and ZX200LC-3G excavators, address it by adjusting the operation of the arm's first and second spool valves. These valves, under the initial pilot pressure during arm retraction, initiate hydraulic oil diversion, allowing hydraulic fluid to bypass. This enables smoother and uninterrupted retraction of the arm, ensuring efficient operation during excavating tasks. www.excavator-...

[@user-go1be6sz2n]

Thanks for sharing

[@ramunasramunass8799]

Hi,having problem with doosan dx 225 arm curl and arm dump position,does not activate second pump so this position works slow.other positions works good.where could be the reason?