Komatsu ecot3 Operation And Maintenance Manual page 197

MACHINE OPERATIONS AND CONTROLS MACHINE OPERATIONS AND CONTROLS
2. Turn swing lock switch (2) ON and check that the swing lock
monitor lights up.
3. To complete the warm-up operation of the hydraulic equipment
more quickly, set the working mode to P mode (heavy-duty
mode).
For details of the procedure for setting the working mode, see
"Working Mode Selector Switch (PAGE 3-26)".
4. Move lock lever (3) slowly to the FREE position (F), then raise
the bucket from the ground.
5. Turn fuel control dial (4) to a point midway between low idle
(MIN) and high idle position (MAX).
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OPERATION OPERATION