Komatsu WA380-6 Operation & Maintenance Manual page 98

OPERATION
POWER MODE SELECTOR SWITCH
This switch (2) can be used to switch the engine output to match
the purpose of the operation.
When the P mode is selected, the power mode pilot lamp (P mode)
on the machine monitor lights up.
Position (a): E mode (engine output low); operations with
emphasis on fuel economy, such as operations on
level ground where a maximum output is not needed
Position (b): P mode (engine output high); operations with
emphasis on productivity
REMARK
To carry out operations with effective fuel consumption, normally set to the E mode.
The maximum engine speed is set lower than in the P mode, but except for hard operations such as heavy-duty
digging of rock, it can display ample power and can also display good fuel consumption. Furthermore, by
pressing the accelerator pedal lightly, it is possible to reduce the fuel consumption.
Set to the P mode when carrying out heavy-duty digging operations of rock or operations where the speed is
required, or when traveling at high speed on flat ground or on slopes.
TRANSMISSION SHIFT MODE SELECTOR SWITCH
This switch (3) is used to change the shift point when the AUTO
SHIFT/MANUAL selector switch has been switched to auto shift.
At each of the L, H positions, the system switches to auto shift and
the auto shift pilot lamp on the machine monitor lights up.
Normally, set to auto shift.
MANUAL position: System is set to manual shift and speed range
is a position selected by gearshift lever
L position: Travel speed when shifting up is low (flat ground,
normal travel)
H position: Travel speed when shifting up is high (traveling uphill,
traveling at high speed)
If it is set to the L position when the work is mainly operations on flat ground, it is possible to shift up when the engine
speed is low. This is effective in reducing fuel consumption.
REMARK
For details of the manual shift, see "MANUAL SHIFT (PAGE 3-53)".
For details of the auto-shift, see "AUTOMATIC SHIFT (PAGE 3-54)".
EXPLANATION OF COMPONENTS
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