Komatsu Galeo PC138US-8 Shop Manual page 267

10 Structure, function and maintenance standard
Modes B and L
Working mode
B
L
Matching point:
q
Working mode
B
L
In B or L mode, engine output is controlled to a
q
constant level.
The controller controls the pump absorption
q
torque to decrease the engine speed while
keeping the engine torque at a constant level
along the equal engine horsepower curve.
The controller controls pump delivery (Q) so
q
that the engine torque can be kept at a con-
stant level along the equal engine horsepower
curve.
PC138US, USLC-8
Partial output
75%
70%
Matching point
50.9 kW/1,870 rpm
{68.2 HP/1,870 rpm}
47.8 kW/1,640 rpm
{64.1 HP/1,640 rpm}
SEN02553-01
9