Komatsu PC118MR-8 Operation And Maintenance Manual page 218

USE OF THE MACHINE AND RELATED CONTROLS
Turbo protection function
The turbo protection function protects the turbocompressor; it keeps engine speed below 1150 rpm right after the
engine starts.
q When the turbo protection function is activated, engine speed remains below 1150 rpm regardless of the fuel
grip position.
q When the turbo protection function is activated, engine speed remains below 1150 rpm even if the fuel grip is
operated.
q When the turbo protection function is deactivated, engine speed makes reference to the position of the fuel
grip.
q The following table shows the relationship between the activation time of the turbo protection function and the
engine coolant temperature.
Coolant temperature
over 10°C
from 10 to -10°C
below -10°C
3-134
Activation time ofturbo prot. (sec.)
0
from 0 to 20
20
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FUNCTIONING