Komatsu D31EX-21, Operation & Maintenance Manual, Page: 87 / 256

OPERATION
EXPLANATION OF COMPONENTS
3-35
CONTROL LEVERS AND PEDALS 3
FUEL CONTROL LEVER
WARNING
q
Check that the steering and forward-reverse selector lever is in the N (neutral) position, when operat-
ing the fuel control lever to the full stroke, while the machine stands.
q
When it is necessary to operate the fuel control lever to the full stroke with the steering and forward-
reverse selector lever kept either in the forward or reverse position, operate the fuel control lever
slowly, while paying a full attention to the surroundings for safety.
This lever (1) is used to control the engine speed and output.
(a) Low idling position: Push the lever forward fully.
(b) High idling position: Pull the lever fully
REMARK
If high-speed travel is not needed and the work consists of
comparatively light loads, return the fuel control lever slightly
from the FULL speed position towards low idling. This
improves the fuel consumption efficiency and also reduces
noise.
For finishing and leveling work or spreading gravel, return the
fuel control lever slightly from the FULL speed position towards
low idling. This reduces shoe slip and increases the service life
of the undercarriage.
(1) Fuel control lever (5) Blade control lever
(2)
Joystick (Steering, directional and gear shift
lever)
(6) Safety lock lever (for blade control lever)
(3) Brake pedal (7) parking lever
(4) Decelerator pedal