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SLEWING-TYPE WORKING MACHINE
An opening and closing motion control section controls an optional control valve so as to reduce opening degree of the optional control valve in a case where a first opening reduction condition is satisfied that a slewing operation detection section detects an operation amount equal to or more than a reference operation amount set in advance so that the reference operation amount is larger than a minimum operation amount of a slewing operation member for causing slewing motion of an upper slewing body and that an optional operation detection section detects operation received by an optional operation member.
SLEWING-TYPE WORKING MACHINE
An opening and closing motion control section controls an optional control valve so as to reduce opening degree of the optional control valve in a case where a first opening reduction condition is satisfied that a slewing operation detection section detects an operation amount equal to or more than a reference operation amount set in advance so that the reference operation amount is larger than a minimum operation amount of a slewing operation member for causing slewing motion of an upper slewing body and that an optional operation detection section detects operation received by an optional operation member.
SLEWING-TYPE WORKING MACHINE
YUMOTO NATSUKI (Autor:in) / UEDA KOJI (Autor:in)
03.10.2019
Patent
Elektronische Ressource
Englisch
IPC:
E02F
Baggern
,
DREDGING