Method For Switching Between Forward And Reverse - Komatsu D85EX-18 Operation & Maintenance Manual

OPERATION
Manual Shift Mode
Changing maximum gear speed used when traveling
• When traveling forward: Possible to change gear speed
used from F1 through F3
• When traveling in reverse: Possible to change gear speed
used from R1 to R3
Up switch (a): Each time this is pressed, gear speed used goes
up one range.
Down switch (b): Each time this is pressed, gear speed used
goes down one range.
REMARK
The preset cannot be changed during travel.
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.
• When the automatic shiftdown is ON, the gear speed is
shifted down automatically when the load increases,
but is not shifted up automatically when the load de-
creases.
When the automatic shiftdown is OFF, the gear speed
must be shifted up and down manually.
You can select the auto shift down in the customize
mode.

METHOD FOR SWITCHING BETWEEN FORWARD AND REVERSE

k k
When switching the travel direction between FORWARD
and REVERSE, check the safety in new direction in which
the machine moves.
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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 speed increased but
depress the decelerator pedal, decrease the engine speed,
and then switch.
WARNING
CAUTION
MACHINE OPERATIONS AND CONTROLS
3-175