Komatsu PC500LC-10R, Shop Manual, Page: 290 / 758

FUNCTION OF ONE-TOUCH POWER MAXIMIZING SYSTEM
• The power is increased for a certain time by operating the one-touch power maximizing switch installed to
the knob of L.H. work equipment control lever.
• This function is used to increase the digging force for a certain time for digging out rocks, etc. during exca-
vation work.
• If the one-touch power maximizing switch is pressed when the load pressure in mode P, E, ATT/P, or ATT/E,
the hydraulic force increases approximately 7 %, and the digging force increases.
Each function is set automatically as follows;
Function Setting
Engine and pump combined control Matching at rated horsepower point
2-stage relief function
34.8 MPa {355 kg/cm
2
}
↓
37.2 MPa {380 kg/cm
2
}
Cutoff function Cancel
The one-touch power maximizing system keeps increasing the
power while one-touch power maximizing switch (1) is pressed.
Even if the switch is kept pressed, this function is canceled au-
tomatically in approximately 8.5 seconds.
ONE-TOUCH POWER MAXIMIZING SYSTEM 10 STRUCTURE AND FUNCTION
10-196 PC500LC-10R