11. EXPLANATION OF COMPONENTS 4. POWER MAX./SWIFT SLOW-DOWN SWITCH During operations, the digging power can be increased and the speed reduced by a one-touch operation of the knob button /single click while pushing). Power max. (power up) lights up: When the working mode is heavy-duty and general operation mode only, the power can be increased while the knob button is being pressed. Even if the knob button continues to be pressed, the increase in power finishes after approx. 8.5 sec. Swift slow-down (speed down) lights up: When the working mode is heavy-duty operation and general operation mode only, the speed is reduced while the knob button is being pressed.
When the engine is started, the power max. lamp lights up. Each time this switch on the monitor panel is pressed, the mode is switch. 5. SWING PRIORITY MODE SWITCH (Selection switch) This switch changes the speed distribution by the combination of boom and swing operation as that priority is given to swing operation. ON lights up: This is available for 180 o swing and loading. OFF: This is used for ordinary work (90 o swing and loading). PC450-ENG 2-14