... SYSTEMGroup 1 Hydraulic Circuit 3-1 Group 2 Main Circuit 3-2 Group 3 Pilot Circuit 3-5 Group 4 Single Operation 3-1 3Group 5 Combined Operation 3-2 3
GROUP 1 HYDRAULIC CIRCUITSECTION ... filter22Line filter23Solenoid valve24Accumulator25Pressure switchGBGAAuSHPGBDr(dr4)MuARHLHCBD1P1P3PP2D2PP2D2P3P1D1dr3 BAB APkPi1V2EV2Pi1Edr7T(dr6)T(dr5)BoAoXBa2XAa2XAkAk1Bk1XBkPbLDr4XAb1Ab1Bb1XBbXBo...
... hydraulic tank through the control valve and the oilcooler.To oil coolerSuction filter(290LC-7) 3-2
3-3 All oil from each actuator returns to the hydraulic tank through the control valve.The bypass ... 3-2 The main hydraulic circuit consists of suction circuit, delivery circuit, return circuit and drain ... is clogged, the oil returns directly to the hydraulic tank through bypass chec...
... 3-1 3When the RH control lever is pulled back, the boom spools in the main control valve are moved ... VALVERELIEF VALVEBOOM HOLDING VALVEBUCKET CYLINDERBOOM CYLINDERGROUP 4 SINGLE OPERATION25073HC10
3-1 4When the RH control lever is pushed forward, the boom spools in the main control valve are movedto ... R2FRONTPUMPREARPUMPMAKE UP VALVERELIEF VALVEBOOM HOLDING VALVEBUCKET CYLINDERBOOM...