A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SLEWING-TYPE WORKING MACHINE
An opening and closing motion control section (71) controls an optional control valve (50) so as to reduce opening degree of the optional control valve (50) in a case where a first opening reduction condition is satisfied that a slewing operation detection section (91) detects an operation amount equal to or more than a reference operation amount (SV) set in advance so that the reference operation amount is larger than a minimum operation amount of a slewing operation member (81A) for causing slewing motion of an upper slewing body (2) and that an optional operation detection section (92) detects operation received by an optional operation member (82A).
SLEWING-TYPE WORKING MACHINE
An opening and closing motion control section (71) controls an optional control valve (50) so as to reduce opening degree of the optional control valve (50) in a case where a first opening reduction condition is satisfied that a slewing operation detection section (91) detects an operation amount equal to or more than a reference operation amount (SV) set in advance so that the reference operation amount is larger than a minimum operation amount of a slewing operation member (81A) for causing slewing motion of an upper slewing body (2) and that an optional operation detection section (92) detects operation received by an optional operation member (82A).
SLEWING-TYPE WORKING MACHINE
SCHWENKBARE ARBEITSMASCHINE
MACHINE DE TRAVAIL DE TYPE GIRATION
YUMOTO NATSUKI (author) / UEDA KOJI (author)
2021-11-03
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING