OPERATING THE MACHINE WORK MODE Five work modes can be selected for most appropriate front and swing speeds for the work to be performed. 1 When the engine is started, the digging mode is automatically set. Each time work mode switch is pressed, the four following modes are selected alternately. 2 • Digging Mode • Breaker 1 • Breaker 2 • Breaker 3 • Breaker 4 M1J1-05-001 The selected work mode is indicated by attachment mode indicator (2) of basic screen (1). Select the work mode corre- sponding to the work in which the machine is engaged while referring to the table below.
1 When using hydraulic crusher, select the breaker mode 1, 2, 3 or 4 when the flow rate of the crusher corresponds to the breaker mode 1, 2, 3 or 4. NOTE: Four work modes shown above are designated as the standard specifications. Up to four attachment modes other than the digging mode can be designated. Con- sult your nearest Hitachi dealer for adding or changing the designation of the attachment modes. Breaker 1 Maximum Pump Flow Rate 260 L/min Maximum Engine Speed Valve Selector Accumulator 1700 min -1 As for the machine equipped with the flow combined pip- ing, when the flow combining valve is set to two pump combined, flow rate becomes the flow rate of selected breaker mode + pump 1.
2-Speed Selector OFF 2ndary Hydraulic Relief Selector 1 2 3 4 5 When using hydraulic breaker or crusher, if required setting flow rate is insufficient, see your nearest authorized dealer for correct information. 6 7 8 9 0 F1 F2 F3 F4 As for the machine equipped with the flow combined pip- ing, switch the flow combining valve to the suitable position for the usage. (Refer to the flow combining valve operation of Chapter 13 in detail.) T1JB-05-02-002E 5-8 Work Mode Description Digging Mode Designed for general digging and truck loading. Breaker 1 Mode ✽1 (Initial Set- ting Flow Rate 260L/min) Select this mode switch when using OKADA OUB 330 respec- tively.
Breaker 2 Mode✽1 (Initial Set- ting Flow Rate 300L/min) Select this mode switch when using FURUKAWA F-70 or MIT- SUBISHI MKB6000V respectively. Breaker 3 Mode✽1 (Initial Set- ting Flow Rate 320L/min) Select this mode switch when using NPK E-240A or MITSUBISHI MKB7000V respectively. Breaker 4 Mode✽1 (Initial Set- ting Flow Rate 350L/min) Select this mode switch when using NPK E-260B respectively.