Komatsu D31EX-21, Руководство по эксплуатации и техническому обслуживанию, Страница: 88 / 256

EXPLANATION OF COMPONENTS
OPERATION
3-36
JOYSTICK (STEERING, DIRECTIONAL AND GEAR SHIFT LEVER)
This lever (2) is used to select the direction of travel, to carry
out steering, and to carry out counterrotation turns.
q Forward-reverse shifting
Position (a): FORWARD
Position (b): REVERSE
Position N: Neutral
Move to the front to drive forward; move to the rear to drive in
reverse.
q Steering
Position (c): LEFT TURN
Position (d): RIGHT TURN
If the lever is at the FORWARD or REVERSE position and it is
operated to the left or right, the machine will turn in the direc-
tion that the lever is operated.
If the lever is operated to the left or right to a position where it
becomes heavy, the turning radius will become smaller.
REMARK
When you are steering, if you release the lever, it will return to the center position and the machine will travel in a
straight line.
When you are steering, support your hand with the lever guide to make it easier to carry out the turning operation.
q
Counterrotation turn
When steering the machine, if the lever is operated further from the position where it becomes heavy, the left and
right tracks will rotate in opposite directions and the machine will carry out a counterrotation turn.
q Gear shifting
Press the shift switch of the knob of the steering, directional,
and gearshift lever to carry out the gearshifting operation.
Press the UP switch to shift up.
Press the DOWN switch to shift down.
When the starting switch is turned to the ON position, the
speed range is set by default to 1st.
For details of the method of selecting the shift mode, monitor
display, and set travel speed, see “DISPLAY PANEL A (SPEED
RANGE, SET TRAVEL SPEED, SHIFT MODE INDICATOR)
(3-15)“.
Lever guide
DOWN
UP