Operating Instructions - Doosan DX140LC Operation And Maintenance Manual

OPERATING INSTRUCTIONS

Engine Speed Control
Engine speed can be manually adjusted using the engine speed
control dial, Increase engine speed by rotating the control knob
clockwise. Decrease engine speed by rotating the control knob
counterclockwise.
IMPORTANT
The engine speed control system has been set at the
factory and should not require adjustment as part of routine
maintenance.
Mode Selection
More efficient work can be done by choosing a proper power
and work mode combination, suitable to type of work and
conditions. Use the mode selection according to following guide.
Power Mode
1. When the starter switch is turned "ON" the power mode is
automatically defaulted to the standard setting.
2. Select a proper power mode using button (1, Figure 40)
before starting work.
3. When the power mode button (1, Figure 40) is pressed, a
signal sounds, changing the power mode to either "ON" or
"OFF." When the power mode is turned "ON," the LED
indicator (2, Figure 40) turns "ON."
Deactivate the power mode by pressing it a second time.
When the power mode is turned "OFF," the LED indicator
(2, Figure 40) turns "OFF" and the power mode returns to
the standard mode.
Mode
STANDARD MODE
POWER MODE
Operation
3-20
• General work.
• Minimize fuel consumption.
• Required to perform heavy work in a short period of time.
• Fast speed loading.
• Fast speed travel.
Figure 39
2
1
1
5
Figure 40
Selection Point
HAOA690L
2
6
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