Komatsu D155AX-8E0, Operation & Maintenance Manual

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(Manual shift mode)
Changing maximum speed range used when traveling
• When traveling forward: Possible to change speed range
used from F1 through F3
• When traveling in reverse: Possible to change speed
range used from R1 to R3
Up switch (a): Each time it is pressed, speed range used goes
up one range.
Down switch (b): Each time it is pressed, speed range used
goes down one range.
NOTICE
• Do not move close to the edge of a cliff unnecessarily.
When dropping soil at the edge of a cliff to build an
embankment or landfill, always leave one load and use
the next load to push the previous load over.
• When reaching the top of a hill, or at the instant when
the load is dumped from a cliff, the load will suddenly
drop and there is danger that the machine will sudden-
ly increase speed, so depress the decelerator pedal to
reduce the speed when dumping the load.
• In the manual shift mode, when the automatic down-
shift is ON, the speed range is shifted down automati-
cally when the load increases, but is not shifted up au-
tomatically when the load decreases.
When the automatic downshift is OFF, the speed range
must be shifted up and down manually.
Select the Auto Shift Down in the customize mode.
METHOD FOR SWITCHING BETWEEN FORWARD AND REVERSE
k k
WARNING
When switching the travel direction, confirm the safety in
the direction to select.
k k
CAUTION
You can switch the forward/reverse travel direction without
stopping the machine. However, for the safety, operator
comfort, and service life of the power train, it is recom-
mended not to switch with the engine at full throttle but
depress the decelerator pedal, decrease the engine speed,
and then switch.
OPERATION MACHINE OPERATIONS AND CONTROLS
3-185