Komatsu PC400LC-5 Operation & Maintenance Manual page 106

12. OPERATION
SElTlNG OF SELECTED MODES
The selected modes are automatically set by setting the basic
mode, but after the basic mode is selected, it is possible to change
the selected mode @ as desired.
Power mode
Working mode
Selection of
Dower mode
Effect
Heavy-duty operation mode H-S Reduction in fuel consumption
General, finishing operation
HtS Increase in speed
mode
S+L Reduction in fuel consumption
Lifting operation mode StL Increase in speed
Auto-deceleration
If the auto-deceleration is always actuated, it improves fuel
consumption, so we recommend that it always be used. However,
if the control levers are operated in small movements, the engine
speed changes greatly, so it is better to carry out such operations
with the auto-deceleration canceled.
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