Komatsu PC138USLC Operation & Maintenance Manual page 80

OPERATION
Working Mode Selector Switch
Use this switch (1) to set the movement or power of the work
equipment.
The operation becomes easier if the mode is selected to match the
content of the operation.
P mode: For heavy-load operations
E mode: For operation with emphasis on fuel consumption
L mode: For fine control operations
B mode: For breaker operations
ATT mode: For double-acting circuit attachment, such as crusher
(attachment-ready machines)
When the monitor first appears, it is automatically set to the
mode in use when it was started the previous time.
Press switch (1) to display the working mode selection screen.
For each set mode, the pilot monitor at the top right of the
monitor display shows P, E, L, B, ATT.
For machines ready for attachment, the attachment mode is added to the display.
For details of the method for handling machines ready for attachment, see the ATTACHMENTS AND OPTIONS
Section.
If you want to have automatic setting of the P, E, L, B or ATT mode when starting (optional default setting), please
ask your Komatsu distributor to change the setting.
DETAILED CONTROLS AND GAUGES
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