SYSTEM / Controller Engine Control Engine Control Dial Control, ECO Control Controls the engine speed according to the rota- tion angle of engine control dial. (Engine Control Dial Control) Reduces the engine speed to 1600 min -1 in 1 second in order to reduce fuel consumption and noise level when all the control levers are in neu- tral. (ECO Control) HP Mode Control Slightly increases digging power such as arm roll-in operation while excavating deeply . Travel Speed Increase Control Increases the engine speed and travels faster during travel single operation. E Mode Control Reduces the target engine speed to 1580 min -1 in maximum in order to reduce fuel consumption.
Auto-Idle Control Reduces the engine speed to 1030 min -1 in 3.5 seconds when all the control levers are in neutral with the auto-idle switch ON. Therefore, fuel consumption and noise level can be reduced. Attachment Operation Speed Increase Control (Optional) Set attachment operation speed (breaker) to in- crease (+) with Dr. ZX. When operating the at- tachment, engine speed increases to the attach- ment operating speed set by Dr. ZX. Attachment Operation Speed Decrease Control (Optional) Set attachment operation speed (breaker) to de- crease (-) with Dr. ZX. When the attachment mode is selected, engine speed decreases to the attachment operating speed set by Dr. ZX. T2-1-4