Komatsu — SWITCHES

OPERATION EXPLANATION OF COMPONENTS FUEL CONTROL DIAL This dial(2) is used to control the engine speed and output. (a) Low idling position: The dial is turned to the left (counter- clockwise) (b) High idling position: The dial is turned to the right (clock- wise) REMARK When the swift deceleration display lamp is lighted up, the engine speed will remain at low idling even if the dial is oper- ated. To restore the engine speed, press the swift deceleration switch on the left control lever to cancel the deceleration func- tion. SWIFT DECELERATION SWITCH Always return the work equipment and travel levers to the neutral position before operating the swift deceleration switch.

If the switch is operated when any lever is being operated, the engine torque will suddenly change. This switch (3) is used to activate the system to lower the engine speed and reduce the fuel consumption when the engine output is not required, such as when the travel levers and left and right work equipment control levers are at the neu- tral position. When the swift deceleration switch in the center of the knob of the left work equipment control lever is pressed, the swift deceleration pilot lamp lights up and the engine speed goes down to low idling.

When the swift deceleration switch is pressed again, the decel- eration pilot lamp goes out, and the engine speed returns to the speed set by the fuel control dial. REMARK G When the fuel control lever is at the low idling position, the engine speed will not go down any lower even if this switch is pressed. G If the engine speed does not rise, it is possible that this switch is ON. Look at the swift deceleration pilot lamp to check the condition of the switch. G If the starting switch is turned OFF when the swift deceleration switch is ON, the deceleration function is can- celed. 3-11 WARNING