Komatsu PC118MR-8 Operation And Maintenance Manual page 110

INSTRUMENTS AND CONTROLS
(1) Work mode selector
Use this button (1) to set the movement and power settings for
the work tool.
Using the appropriate mode for the job in hand makes
operation much easier.
q P mode: for digging and loading/unloading operations with
maximum power and speed of movement.
q E mode: for operations with low fuel consumption,
precision work, where speed of movement is not required
q L mode: for lifting and positioning operations with
maximum control
q B mode: for operations with the hydraulic breaker
q ATT/P mode: for operations with accessories with double
action circuit, such as a crusher (machines provided)
q ATT/E mode: for operations with accessories with double
action circuit, such as a crusher (machines provided, low
fuel consumption)
The mode displayed when the machine is switched on is the
last mode used before previous shut-down.
Press the button (1) to display the operating mode selection
screen. 
Depending on the mode selected, the indicator at the top right
displays P, E, L, B or ATT.
On machines predisposed for accessories, the indicator also
displays the attachment mode.
For details on using machines predisposed for accessories,
see "GENERAL PRECAUTIONS FOR SAFETY (6-2)".
For details on the correct loading lifting method see "LIFTING
OBJECTS WITH LIFTING DEVICE (OPTIONAL EQUIPMENT)
(2-47)" and "LIFTING OBJECTS WITH LIFTING DEVICE (3-
166)".
To change which of the modes available (P, E, L, B or ATT) is
selected automatically on engine start (setting optional default
mode), ask Komatsu distributor to change the setting.
ATT/P and ATT/E modes may be selected by changing the
attachment mode.
For details on how to change the attachment mode, see
"USING THE FUNCTION KEYS (3-34)" ("Modifying "breaker"
mode settings").
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FUNCTIONING